Billy Joel and Christie Brinkley's daughter Alexa Ray Joel is engaged

She said yes!

Alexa Ray Joel celebrated the new year with a brand new fiance. On Monday, Billy Joel and Christie Brinkley's daughter took to Instagram with a sweet photo of herself kissing her longtime boyfriend, Ryan Gleason, and showing off her engagement ring. 

"He said to me: 'Before I met you, my world was in black and white. You colored it in between the lines,'" she captioned the pic on Instagram. "It was the most beautiful thing anybody’s ever said to me. How could I possibly say no to that?!?!"

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Alexa Ray Joel and Ryan Gleason
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Alexa Ray Joel and Ryan Gleason
~He said to me: “Before I met you, my world was in black and white. You colored it in between the lines.” It was the most beautiful thing anybody’s ever said to me. How could I possibly say no to that?!?!~ 🕊🖤🕊
...So I was completely taken off-guard, dumbstruck, and shell-shocked- and FOR ONCE in my life, I had absolutely no words, and I couldn’t speak... I just kept staring at this ridiculously exquisite ring- and he was just hysterically laughing at me!!! 🕊💎🕊
🕊⚓️🕊
🕊🖤🕊
~'Things are OK in Oyster Bay / He's got a new wife / He's got a new life / And the family is fine'...~ ❤️⚓️❤️
Sailing through Gardiners Bay on the Francesca. Thanks for the photo @artminsta !!
I'm pretty sure she is laughing at me.
Thanks To this girl for making today a very special birthday!!!! You rock my world!!! Love you more and more everyday!!!!
Friday night at The Garden... With My two"A's". Thanks for the photo @kylieruggles
Happy New Years Eve Everyone!!! Looking forward to seeing you all in 2016.
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The 32-year-old singer also posted a pic of the two on the beach shortly after the proposal, which Alexa's rep confirmed took place over the New Year's Eve holiday.

"So I was completely taken off-guard, dumbstruck, and shell-shocked- and FOR ONCE in my life, I had absolutely no words, and I couldn’t speak..." she explained. "I just kept staring at this ridiculously exquisite ring- and he was just hysterically laughing at me!!!"

Ryan also shared the good news on social media, posting a pic of his and his new fiancee's hands, which proudly showed off Joel's massive new rock.

"Luckiest guy in the world!!!!" he wrote.

18 PHOTOS
Billy Joel and Christie Brinkley
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Billy Joel and Christie Brinkley
(EXCLUSIVE COVERAGE) Billy Joel and Christie Brinkley pose backstage at the long running hit musical 'Chicago' on Broadway at The Ambassador Theater on June 11, 2011 in New York City. ***Exclusive*** (Photo by Bruce Glikas/FilmMagic)
Singer Mariah Carey, musician Billy Joel and model Christie Brinkley attend The Police Athletic League Honors Mayor David Dinkins on June 12, 1991 at The Plaza Hotel in New York City. (Photo by Ron Galella, Ltd./WireImage)
Musician Billy Joel and model Christie Brinkley attend the wedding of Tommy Mottola and Mariah Carey on June 5, 1993 at St. Thomas Episcopal Church in New York City. (Photo by Ron Galella, Ltd./WireImage)
Musician Billy Joel and model Christie Brinkley attend the After Party for Billy Joel's Television Concert Special 'Matter of Trust: Billy Joel in the USSR' on June 2, 1988 at the Hard Rock Cafe in New York City. (Photo by Ron Galella, Ltd./WireImage)
Model Christie Brinkley and musician Billy Joel attend 'A Divine Celebration' Cathedral of St. John the Divine Honors Billy Joel on December 5, 1990 at the Cathedral of St. John the Divine in New York City. (Photo by Ron Galella, Ltd./WireImage)
Musician Billy Joel and model Christie Brinkley attend The Walden Woods Project Benefit Concert After Party on October 21, 1991 at the Tavern on the Green in New York City. (Photo by Ron Galella, Ltd./WireImage)
Musician Billy Joel and model Christie Brinkley on September 15, 1988 dine at the Columbus Cafe in New York City. (Photo by Ron Galella, Ltd./WireImage)
Model Christie Brinkley and musician Billy Joel attend the First Annual Rock and Roll Hall of Fame Induction Ceremony on January 23, 1986 at the Waldorf-Astoria Hotel in New York City. (Photo by Ron Galella, Ltd./WireImage)
Model Christie Brinkley, musician Billy Joel and daughter Alexa Ray Joel attend The Moscow Circus Opening Night Performance on September 15, 1988 at Radio City Music Hall in New York City. (Photo by Ron Galella, Ltd./WireImage)
Model Christie Brinkley and musician Billy Joel attend the 'Speed-the-Plow' Opening Night Performance on May 3, 1988 at the Royale Theatre in New York City. (Photo by Ron Galella/WireImage)
Musician Billy Joel and model Christie Brinkley attend the Second Annual Rock and Roll Hall of Fame Induction Ceremony on January 21, 1987 at the Waldorf-Astoria Hotel in New York City. (Photo by Ron Galella/WireImage)
Model Christie Brinkley and musician Billy Joel attend the Second Annual Rock and Roll Hall of Fame Induction Ceremony on January 21, 1987 at the Waldorf-Astoria Hotel in New York City. (Photo by Ron Galella/WireImage)
NEW YORK - APRIL 25: (L-R) Christie Brinkley, Alexa Ray Joel and Billy Joel attend the premiere of 'Last Play At Shea' during the 2010 Tribeca Film Festival at the Tribeca Performing Arts Centre on April 25, 2010 in New York City. (Photo by Jemal Countess/Getty Images for Tribeca Film Festival)
NEW YORK CITY - JUNE 5: Musician Billy Joel and model Christie Brinkley attend the wedding of Tommy Mottola and Mariah Carey on June 5, 1993 at St. Thomas Episcopal Church in New York City. (Photo by Ron Galella, Ltd./WireImage)
Christie Brinkley and Billy Joel during Christie Brinkley and Billy Joel Sighting - November 2, 1989 at Langan's Brasserie in London, United Kingdom. (Photo by Tom Wargacki/WireImage)
Billy Joel and Christie Brinkley during 30th Annual Grammy Awards at Radio City Music Hall in New York City, New York, United States. (Photo by Ron Galella/WireImage)
Billy Joel and Christie Brinkley (Photo by Ron Galella/WireImage)
NEW YORK, NY - CIRCA 1983: Christie Brinkley and Billy Joel circa 1983 in New York City. (Photo by Sonia Moskowitz/IMAGES/Getty Images)
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Not only do they now have an engagement to celebrate, the loved-up duo were also enjoying a beach vacay in honor of Alexa's birthday -- she turned 32 on Dec. 29.

The couple has been dating for five years. Back in July, Brinkley told ET that the restaurateur had her stamp of approval. "I totally approve. Nicest guy, real sweetheart," the 63-year-old supermodel said of Ryan. "He just gets her, and I see him sort of looking at her in that special way. It's sweet."

Alexa is the only child of Joel and Brinkley, who divorced in 1994. Joel, 68, also has two young daughters, Della and Remy, with his fourth wife, Alexis Roderick, while Brinkley has a 22-year-old son, Jack, from her marriage to Richard Taubman and a 19-year-old daughter, Sailor, with her ex-husband Peter Cook.

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Christie Brinkley through the years
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Christie Brinkley through the years
NEW YORK, NY - CIRCA 1982: Christie Brinkley circa 1982 in New York City. (Photo by Images Press/IMAGES/Getty Images)
American model (and later actress) Christie Brinkley, dressed with a full-length woolen poncho over a turtleneck and trousers, as she carries several books in front of a white background, October 1976. (Photo by Susan Wood/Getty Images)
NEW YORK CITY - AUGUST 30: Model Christie Brinkley attends the press luncheon to announce the launch of her sportswear and swimwear collection with Russ Togs, Inc. on August 30, 1983 at Versailles Room, Helmsley Palace Hotel in New YOrk City. (Photo by Ron Galella/WireImage)
NEW YORK CITY - FEBRUARY 10: Model Christie Brinkley attends 'The Inquiry' New York City Premiere on February 10, 1987 at City Cinemas Cinema 3 in New York City. (Photo by Ron Galella, Ltd./WireImage)
EAST HAMPTON, LONG ISLAND, NY - AUGUST 26: Model Christie Brinkley and daughter Alexa Ray Joel attend the 25th Annual Artists & Writers Charity Softball Game on August 26, 1989 at Herrick Park in East Hampton, Long Island, New York. (Photo by Ron Galella, Ltd./WireImage)
NEW YORK CITY - FEBRUARY 12: Model Christie Brinkley attends the Toy Fair 1990 - Matchbox Toys unveils their new line of dolls: The Real Model Collection on February 12, 1990 at the Jacob K. Javits Convention Center in New York City. (Photo by Ron Galella, Ltd./WireImage)
Christie Brinkley during Scenery Greenery Party at Montauk Manor in Montauk, New York, United States. (Photo by Ron Galella/WireImage)
NEW YORK CITY - DECEMBER 17: Model Christie Brinkley attends the 'Awakenings' Premiere Party on December 17, 1990 at The Pierre Hotel in New York City. (Photo by Ron Galella/WireImage)
NEW YORK CITY - NOVEMBER 15: Model Christie Brinkley attends the Nordoff-Robbins Music Therapy's Third Annual Silver Clef Award Salute to Bon Jovi on November 15, 1990 at Roseland Ballroom in New York City. (Photo by Ron Galella, Ltd./WireImage)
Christie Brinkley during Police Athletic Dinner Honoring David Dinkins - June 12, 1991 at Plaza Hotel in New York City, New York, United States. (Photo by Ron Galella, Ltd./WireImage)
Christie Brinkley and Billy Joel during Walden Woods Benefit Concert - After Party - October 21, 1991 at Tavern on the Green in New York City, New York, United States. (Photo by Ron Galella, Ltd./WireImage)
NEW YORK CITY - OCTOBER 21: Model Christie Brinkley attends The Walden Woods Project Benefit Concert After Party on October 21, 1991 at the Tavern on the Green in New York City. (Photo by Ron Galella, Ltd./WireImage)
LOS ANGELES - JANUARY 2: Model Christie Brinkley arrives from New York City on January 2, 1994 at Los Angeles International Airport in Los Angeles, California. (Photo by Ron Galella, Ltd./WireImage)
UNIVERSAL CITY,CA - DECEMBER 9: Model Christie Brinkley attends the Third Annual Billboard Music Awards on December 9, 1992 at Universal Amphitheatre in Universal City, California. (Photo by Ron Galella, Ltd./WireImage)
SAG HARBOR, LONG ISLAND, NY - JULY 10: Model Christie Brinkley attends the Bay Street Theatre Benefit Party on July 10, 1993 at Marine Park in Sag Harbor, Long Island, New York. (Photo by Ron Galella, Ltd./WireImage)
Christie Brinkley (Photo by Ron Galella/WireImage)
Christie Brinkley (Photo by Ron Galella, Ltd./WireImage)
NEW YORK CITY - JUNE 7: Model Christie Brinkley attends the Fragrance Foundation's 27th Annual FiFi Awards on June 7, 1999 at Avery Fisher Hall, Lincoln Center in New York City. (Photo by Ron Galella, Ltd./WireImage)
Christie Brinkley during Fourth Annual 'Super Saturday' Benefit held at Nova's Ark Project in Water Mill, New York at Nova's Ark Project in Water Mill, New York, United States. (Photo by Theo Wargo/WireImage)
NEW YORK - JULY 26: Model Christie Brinkley attends Super Saturday 6, the annual designer sale and family event to benefit the Ovarian Cancer Research Fund at Nova's Ark Project July 26, 2003 in Water Mill, NY. (Photo by Evan Agostini/Getty Images)
Christie Brinkley during Ringling Bros. and Barnum & Bailey: The 134th Edition of The Greatest Show On Earth - Pre-Party at Madison Square Garden in New York City, New York, United States. (Photo by Carley Margolis/FilmMagic)
Christie Brinkley during 2004 Sports Illustrated Swimsuit Issue - Top Models Celebrate the Issue's 40th Anniversary at Club Deep in New York City, New York, United States. (Photo by Ron Galella/WireImage)
Christie Brinkley wearing Red Dress Collection Fall 2005 at the The Tent, Bryant Park in New York City, New York (Photo by Mychal Watts/WireImage)
Christie Brinkley during 'People We Know, Horses They Love' - Book Launch Party at Fresco To Go in New York City, New York, United States. (Photo by Jamie McCarthy/WireImage)
Christie Brinkley during Carolina Herrera hosts a party for the introduction of Patricia Wexler M.D, a new skin care line at Carolina Herrera Boutique in New York, New York, United States. (Photo by Sylvain Gaboury/FilmMagic)
Christie Brinkley (Photo by Marcel Thomas/FilmMagic)
Christie Brinkley during The Skin Cancer Foundations Annual 'Skin Sense' Award Gala - October 11, 2006 at The Pierre Hotel in New York City, New York, United States. (Photo by Jason Kempin/FilmMagic)
EAST HAMPTON, NY - AUGUST 4: Model Christie Brinkley arrives at the Hampton Social @ Ross to watch a concert by Billy Joel at the Ross School on August 4, 2007 in East Hampton, New York. (Photo by Mat Szwajkos / Getty Images for Hampton Social @ Ross)
NEW YORK - APRIL 21: Christie Brinkley attends the Cookie Magazines Smart Cookie Awards at The Morgan Library & Museum on April 21, 2008 in New York City. (Photo by Jason Kempin/WireImage)
NEW YORK - APRIL 14: Supermodel Christie Brinkley poses at the 1st Annual Luncheon and Educational Panel to Benefit the Northeast Organic Farming Association of New York at Guastivino's on April 14, 2008 in New York City. (Photo by Will Ragozzino/Getty Images)
PARK CITY, UT - JANUARY 16: Fomrer model Christie Brinkley is seen around the 2009 Sundance Film Festival on January 16, 2009 in Park City, Utah. (Photo by Frazer Harrison/Getty Images)
NEW YORK - JUNE 17: Christie Brinkley attends the 6th annual Wayuu Taya Foundation gala at Stephen Weiss Studio on June 17, 2009 in New York City. (Photo by Bryan Bedder/Getty Images)
NEW YORK - NOVEMBER 7: (ITALY OUT, NY DAILY NEWS OUT, NY NEWSDAY OUT) Christie Brinkley leaves the Sherry Netherland Hotel in Midtown Manhattan on November 7, 2009 in New York City. (Photo by Arnaldo Magnani/Getty Images)
NEW YORK - SEPTEMBER 28: Model Christie Brinkley attends the HBA Global 2010 Positively Beautiful Award presentation at the Jacob Javitz Center on September 28, 2010 in New York City. (Photo by Stephen Lovekin/Getty Images)
EAST HAMPTON, NY - AUGUST 21: Supermodel Christie Brinkley attends the 2010 Max Cure Foundation's Roar for a Cure carnival at the East Hampton Indoor Tennis Club on August 21, 2010 in East Hampton, New York. (Photo by Steven A Henry/Getty Images)
Model Christie Brinkley attends the 1990 Scenery-Greenery Celebrity Cocktail Party to Benefit the Montauk Village Association on July 28, 1990 at Montauk Manor in Montauk, Long Island, New York. (Photo by Ron Galella, Ltd./WireImage)
Model Christie Brinkley attends The Men's Fashion Association of America's 1982 American Image Awards on Ocotber 25, 1982 at The Sheraton Centre in New York City. (Photo by Ron Galella/WireImage)
Model Christie Brinkley attends Cartier Launches the Tank Francaise Watch Collection on May 8, 1996 at the former B. Altman & Company Store, 361 Fifth Avenue at 34th Street in New York City. (Photo by Ron Galella, Ltd./WireImage)
Model Christie Brinkley attends 'The Face of the 80's' Television Special Taping on August 14, 1982 at the Beacon Theater in New York City. (Photo by Ron Galella/WireImage)
Model Christie Brinkley attends Eartha Kitt's Cabaret Concert Performance on January 4, 1996 at Cafe Carlyle in New York City. (Photo by Ron Galella, Ltd./WireImage)
Model Christie Brinkley attends Sony Corporation Celebrates Grand Opening of The Sony Plaza - A New Mega-Entertainment Center on November 9, 1993 at The Sony Plaza, Madison Avenue and 56th Street in New York City. (Photo by Ron Galella, Ltd./WireImage)
Christie Brinkley poses at the 2011 Broadway Cares Easter Bonnet Competition at the Minskoff Theatre on April 26, 2011 in New York City. (Photo by Bruce Glikas/FilmMagic)
Christie Brinkley attends the 65th Annual Tony Awards at the Beacon Theatre on June 12, 2011 in New York City.
SOUTHAMPTON, NY - JUNE 24: Christie Brinkley attends the celebration of her cover on Hamptons Magazine at Savanna's on June 24, 2011 in Southampton, New York. (Photo by Sonia Moskowitz/Getty Images)
LONDON, ENGLAND - AUGUST 27: (EXCLUSIVE COVERAGE) Christie Brinkley poses inside the theatre before her final performance in 'Chicago' at the Cambridge Theatre on August 27, 2011 in London, England. (Photo by Bruce Glikas/FilmMagic)
NEW YORK, NY - FEBRUARY 08: Christie Brinkley attends the Heart Truth's Red Dress Collection Fall 2012 fashion show during Mercedes-Benz Fashion Week at Hammerstein Ballroom on February 8, 2012 in New York City. (Photo by Charles Eshelman/FilmMagic)
HOLLYWOOD, CA - MAY 16: Actress Christie Brinkley arrives at the opening night of 'Chicago' at the Pantages Theatre on May 16, 2012 in Hollywood, California. (Photo by Araya Diaz/WireImage)
NEW YORK, NY - OCTOBER 05: Actress Christie Brinkley attends 2012 World Smile Day in Times Square on October 5, 2012 in New York City. (Photo by Charles Eshelman/FilmMagic)
BRIDGEHAMPTON, NY - JULY 20: Christie Brinkley attends the opening day of the Bridgehampton Polo Club's 17th Season at the Bridgehampton Polo Club on July 20, 2013 in Bridgehampton, New York. (Photo by Sonia Moskowitz/Getty Images)
NEW YORK, NY - NOVEMBER 13: Christie Brinkley leaves 'Katie' on November 13, 2013 in New York City. (Photo by James Devaney/WireImage)
NEW YORK, NY - NOVEMBER 12: Christie Brinkley attends a special screening of 'White Gold' at Museum of Modern Art on November 12, 2013 in New York City. (Photo by Rommel Demano/Getty Images)
HOLLYWOOD, CA - JANUARY 14: Model Christie Brinkley arrives at NBC And Time Inc. Celebrate 50th Anniversary Of Sports Illustrated Swimsuit Issue at Dolby Theatre on January 14, 2014 in Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
WAINSCOTT, NY - MAY 24: Christie Brinkley attends the Christie Brinkley and Social Life Magazine May 2014 cover launch party on May 24, 2014 in Wainscott, New York. (Photo by Sonia Moskowitz/Getty Images)
EAST HAMPTON, NY - JULY 24: Christie Brinkley attends the 'Mission: Impossible - Rogue Nation' Special Screening Hosted By Alec Baldwin, Arrivals at United Artists East Hampton Cinema on July 24, 2015 in East Hampton, New York. (Photo by Monica Schipper/Getty Images for Paramount Pictures Studios)
NEW YORK, NY - MAY 29: Christie Brinkley attends BookExpo America 2015 at Jacob javits Center on May 29, 2015 in New York City. (Photo by John Lamparski/WireImage)
EAST HAMPTON, NY - AUGUST 21: Christie Brinkley performs in 'Celebrity Autobiography' at Guild Hall on August 21, 2015 in East Hampton, New York. (Photo by Sonia Moskowitz/Getty Images)
EAST HAMPTON, NY - OCTOBER 10: Model Christie Brinkley attends the Chairman's Reception during Day 3 of the 23rd Annual Hamptons International Film Festival on October 10, 2015 in East Hampton, New York. (Photo by Monica Schipper/Getty Images For Hamptons International Film Festival)
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