Celine Dion reveals how husband Rene helped her return to the Las Vegas stage

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Celine Dion on Husband René Angélil: 'We Don't Know What the Future Holds'

Celine Dion is back after a long Las Vegas hiatus!

After caring for her husband Rene Angélil, 73, who is battling throat cancer, the "My Heart Will Go On" singer is returning to The Colosseum stage at Caesar's Palace, because he wants her to.

"We don't know what the future holds," the 47-year-old admitted to ET on Sunday, adding that Rene told her to be "back, strong, [to] do it, still share your passion."

In December 2013, Rene underwent surgery to remove a cancerous tumor from his throat.

As for how her husband is doing now, she shared, "Rene today is feeling good because I am here, because I am talking, because I am alive," she said. "Because a few months back, he was worried- is he going to be there?"

WATCH: Celine Dion on Caring for Her Ailing Husband: 'He's Such a Champ'

She further spoke about how supportive they've been to each other.

"He's been there for me all my life, and I've been there for him all my life," she said. "There's a part of me that never really left the stage. I wanted to be there but I needed to be someplace else which was much more important at that time. To be by his side. To be by my family."

And she's bringing the emotions to the stage when she returns on Thursday.

Check out some older pics of Celine Dion:

16 PHOTOS
FLASHBACK: 22-Year-Old Celine Dion admires Madonna, Mariah and Whitney
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Celine Dion reveals how husband Rene helped her return to the Las Vegas stage
Celine Dion (Photo by Jeff Kravitz/FilmMagic)
Celine Dion at the Dorothy Chandler Pavilion in Los Angeles, California (Photo by Steve Granitz/WireImage)
AUBURN HILLS, MI - JANUARY 10: Singer Celine Dion she speaks to the news media after performing for DaimlerChrysler employees at the company's headquarters January 10, 2003 in Auburn Hills, Michigan. Dion will be featured in an upcoming DaimlerChrysler ad campaign. (Photo by Bill Pugliano/Getty Images)
BEVERLY HILLS, CA - JANUARY 22: Musician Celine Dion attends the UCLA Head and Neck Surgery Luminary Awards at the Beverly Wilshire Four Seasons Hotel on January 22, 2014 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images for The UCLA Department of Head and Neck Surgery)
405715 18: Singer Celine Dion attends the 5th Annual VH1 Divas Las Vegas concert May 23, 2002 in Las Vegas, NV. The concert benefits the VH1 'Save The Music Foundation.' (Photo by Frederick M. Brown/Getty Images)
406133 17: Singer Celine Dion attends Zootopia 2002 at Giants Stadium June 2, 2002 in East Rutherford, NJ. (Photo by Lawrence Lucier/Getty Images)
Celine Dion performs during a taping of the Early Show at the CBS Studios in New York City. 3/26/02 Photo by Scott Gries/Getty Images
Celine Dion (Photo by Ke.Mazur/WireImage)
Celine Dion performing on the 1999 Billboard Music Awards at the MGM Grand Garden Arena in Las Vegas, 12/8/1999. Photo: Frank Micelotta/Getty Images
401611 119: Singer Celine Dion attends the 44th Annual Grammy Awards at Staples Center February 27, 2002 in Los Angeles, CA. (Photo by Frederick M. Brown/Getty Images)
Celine Dion performs at the Kodak Theatre in Los Angeles for her new CBS special 'Celine Dion: A New Day Has Come', Sunday, March 3, 2002. Photo by Kevin Winter/ImageDirect
Celine Dion (Photo by Ke.Mazur/WireImage)
BEVERLY HILLS, CA - JANUARY 22: Musician Celine Dion performs onstage during the UCLA Head and Neck Surgery Luminary Awards at the Beverly Wilshire Four Seasons Hotel on January 22, 2014 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images for The UCLA Department of Head and Neck Surgery)
THE VOICE -- 'Live Finale' Episode 519B -- Pictured: Celine Dion -- (Photo by: Tyler Golden/NBC/NBCU Photo Bank via Getty Images)
PARIS, FRANCE - DECEMBER 05: Singer Celine Dion performs at the Palais Omnisports de Bercy on December 5, 2013 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)
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"There's going to be a lot of strength in that show and why? Because Renee and I, we are reunited like always, but love has transformed in an even stronger strength so that strength and that focus and even that happiness and that little joke and that fun time---you know what, thank you for allowing me not to be here for a year," she said. "Don't ask me where I was. Okay, I was not sun bathing at the beach."

WATCH: Inside Celine and Rene's Enduring 20-Year Love Story

Celine has performed over 900 times at The Colosseum and added 31 new shows to her residency at Caesar's Palace.

Check out the video above to see her speak about her husband and hiatus.

See some pictures of Celine and her husband:

40 PHOTOS
Celine Dion and husband Rene Angelil
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Celine Dion reveals how husband Rene helped her return to the Las Vegas stage
CANADA - MAY 01: Archives: Celine Dion In Montreal, Canada In May, 1996-December, 17, 1994, during her wedding with Rene Angelil. (Photo by Michel PONOMAREFF/PONOPRESSE/Gamma-Rapho via Getty Images)
UNITED STATES - MARCH 01: Celine Dion and Rene Angelil In Los Angeles, United States In March 1990. (Photo by Pool 6500/PONOPRESSE/Gamma-Rapho via Getty Images)
MONACO - MAY 03: World Music Awards In Monte Carlo, Monaco On May 03, 1995 - Celine Dion and husband Rene Angelil. (Photo by Jean-Pierre REY/Gamma-Rapho via Getty Images)
CANADA - JUNE 19: Celine Dion celebrates her 10 years career In Montreal, Canada On June 19, 1991-Celine Dion and her manager Rene Angelil. (Photo by PONOPRESSE/Gamma-Rapho via Getty Images)
CANADA - DECEMBER 15: Celine Dion's Wedding In Montreal, Canada On December 15, 1994-Celine Dion with husband Rene Angelil. (Photo by PONOPRESSE/Gamma-Rapho via Getty Images)
Rene Angelil and Celine Dion (Photo by Ke.Mazur/WireImage)
CANADA - SEPTEMBER 08: Celine Dion And Husband Rene Angelil Giving Press Conference In Montreal, Canada On September 08, 1999. (Photo by Michel PONOMAREFF/PONOPRESSE/Gamma-Rapho via Getty Images)
UNITED STATES - MARCH 01: Celine Dion and Rene Angelil In Los Angeles, United States In March 1990. (Photo by Pool 6500/PONOPRESSE/Gamma-Rapho via Getty Images)
392394 04:: Pop star Celine Dion stands next to her husband, Rene Angelil, who holds their baby Rene-Charles July 25, 2001 as they arrive at the chappel of the Notre-Dame Basilica in old Montreal, Quebec before the baptism of their 6-month-old baby boy, The ceremony was celebrated by Mgr Michel SaydT in French, English and Arab under the Greek-Melkite rite. (Photo by Pierre Roussel / Getty Images)
CANADA - JULY 25: Christening of Rene Charles son of Celine Dion and Rene Angelil In Canada On July 25, 2001-Celine Dion, her husband Rene Angelil and their son Rene Charles. (Photo by Michel PONOMAREFF/PONOPRESSE/Gamma-Rapho via Getty Images)
Celine Dion & Husband Rene Angelil during 2000 Nabisco Golf Championship at Mission Hills Country Club in Rancho Mirage, California, United States. (Photo by Sam Levi/WireImage)
Celine Dion & Rene Angelil during Celine Dion Opening Night Of 'A New Day' - Post Concert Press Conference at The Colosseum at Caesars Palace in Las Vegas, Nevada, United States. (Photo by Tony Barson/WireImage)
MONACO - MAY 08: World Music Awards In Monaco city, Monaco On May 08, 1996 - Celine Dion & Husband Rene Angelil. (Photo by Jean-Pierre REY/Gamma-Rapho via Getty Images)
CANADA - OCTOBER 25: Celine Dion And Rene Angelil Attend A Hommage To Hockey Player Maurice Richard In Montreal, Canada On October 25, 1999-Rene Angelil And Celine Dion. (Photo by Michel PONOMAREFF/PONOPRESSE/Gamma-Rapho via Getty Images)
Photo by: Russ Einhorn STAR MAX, Inc. - copyright 2002 ALL RIGHTS RESERVED Telephone/Fax: (212) 995-1196 5/23/02 Celine Dion and husband Rene at "VH1 Divas Las Vegas". (The MGM Grand Hotel, Las Vegas, Nevada) (Star Max via AP Images)
HOLLYWOOD - JANUARY 6: Singer Celine Dion (C) attends a ceremony honoring her with a star on the Hollywood Walk of Fame on January 6, 2004 in Hollywood, California. Also pictured (L-R): honorary mayor Johnny Grant, Dion's husband Rene Angelil, comedian Jay Leno and Hollywood Chamber president LeRon Gubler. (Photo by Vince Bucci/Getty Images)
Rene Angelil and Celine Dion (Photo by Jim Smeal/WireImage)
NEW YORK - OCTOBER 15: (ITALY OUT, NY DAILY NEWS OUT, NY NEWSDAY OUT) Celine Dion leaves with her husband Rene Angelil on her way to Madison Square Garden for a performance October 15, 2004 in New York City. (Photos by Arnaldo Magnani/Getty Images)
Celine Dion and Rene Angelil (Photo by Tony Barson/WireImage)
Rene Angelil and Celine Dion during Chris Aire Fashion Show at Pure Nightclub - Runway and Front Row at Pure Nightclub in Las Vegas, Nevada, United States. (Photo by Chris Weeks/WireImage)
CANADA - MARCH 02: Rene Angelil's book launching In Montreal, Canada On March 02, 2009-Rene Angelil and Celine Dion (Photo by Michel PONOMAREFF/PONOPRESSE/Gamma-Rapho via Getty Images)
MONTREAL, CANADA: Canadian singer Celine Dion (L) wipes away tears while speaking at Sainte-Justine Children's Hospital in Montreal, Canada, 18 December, 2002. She and her husband, Rene Angelil (R), became godfather and godmother for the hospital to help raise funds for sick children. AFP PHOTO/Andre Forget (Photo credit should read ANDRE FORGET/AFP/Getty Images)
Celine Dion jokes with her husband, Rene Angelil, while they pose for photos with a wax figure modeled after Dion before her 500th performance at Caesar's Palace in Las Vegas on Sunday, May 7, 2006. The figure was prepared by the Grevin waxworks company of Paris. (AP Photo/Isaac Brekken)
Celine Dion hugs her son Rene Charles, and her husband Rene Angelil following the final performance of A New Day at Caesar's Palace Hotel & Casino in Las Vegas on Saturday, Dec. 15, 2007. (AP Photo/Isaac Brekken)
Canadian singer Celine Dion and husband Rene Angelil pose upon arrival at the Palais des Festivals in Cannes, southern France, 26 January 2008 to attend the 2008 NRJ Music Awards. AFP PHOTO VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)
Singer Celine Dion and husband Rene Angelil pose in New York, Thursday Dec. 16, 1999, after she was presented a commemorative award by Sony Music in recognition of her career sales of more than 100-million albums. (AP Photo/Richard Drew)
Canadian singer Celine Dion stands with her husband Rene Angelil in the media center after receiving a special recognition award at the Latin Billboard Awards at the Jckie Gleason Theater in Miami Beach. Fla. Thursday May 9, 2002. (AP Photo/Marta Lavandier)
Celine Dion and her husband Rene Angelil pose after she performed on NBC's "Today" show summer concert series in New York's Rockefeller Center Friday, May 17, 2002. (AP Photo/Richard Drew)
Singer Celine Dion tours the lobby of the new Augustus Tower at Caesars Palace in Las Vegas, with her husband Rene Angelil, right, Thursday, Sept. 1, 2005. Before the dedication of the hotel's Tower, Dion pledged $1 million to the relief fund for victims of Hurricane Katrina.(AP Photo/Joe Cavaretta)
In this photo released by the Chinese news agency Xinhua, Canadian singer Celine Dion and her husband Rene Angelil attend a TV program in Beijing, China, on Saturday April 12, 2008. (AP Photo/Xinhua, Luo Xiaoguang)
LAS VEGAS, NV - JUNE 28: Celine Dion and Rene Angelil arrive at the 'Veronic Voices' Premiere at Bally's Las Vegas on June 28, 2013 in Las Vegas, Nevada. (Photo by Denise Truscello/WireImage)
Canadian singer, Celine Dion, right, poses with her husband René Angelil, left, at the Elysee palace after being awarded of the Legion d'Honneur by French President Nicolas Sarkozy, in Paris, Thursday, May 22, 2008. (AP Photo/Thibault Camus)
French President Nicolas Sarkozy, right, poses with Canadian singer Celine Dion, second right, Rene Charles her son, center, Therese Dion her mother, second left, and her husband Rene Angelil, left, after she was awarded with France's Legion d'Honneur, during a ceremony at the Elysee Palace in Paris Thursday, May 22, 2008.(AP Photo/Charles Platiau, Pool)
HOLLYWOOD, CA - FEBRUARY 27: Singers Rene Angelil and Celine Dion arrive at the 83rd Annual Academy Awards held at the Kodak Theatre on February 27, 2011 in Hollywood, California. (Photo by John Shearer/Getty Images)
DUESSELDORF, GERMANY - NOVEMBER 22: Celine Dion and husband Rene Angelil attend 'BAMBI Awards 2012' at the Stadthalle Duesseldorf on November 22, 2012 in Duesseldorf, Germany. (Photo by Andreas Rentz/Getty Images)
FILE - In this Feb. 16, 2010 file photo, Celine Dion, left, poses with her husband Rene Angelil, pose as they arrive for the premiere of the film "Celine: Through the Eyes of the World" in Miami Beach, Fla. Celine Dion has given birth to twin boys, just days after being hospitalized as a precaution. A statement released from St. Mary's Medical Center in West Palm Beach, Fla., said that the superstar singer delivered the boys Saturday afternoon. One boy weighed 5 pounds, 10 ounces, while the other weighed 5 pounds, 4 ounces. (AP Photo/Lynne Sladky, file)
NEW YORK - DECEMBER 07: Celine Dion, Rene Charles Angelil and Rene Angelil attend the Portland Trailblazers Vs. New York Knicks game at Madison Square Garden on December 7, 2009 in New York City. (Photo by James Devaney/WireImage)
Celine Dion, right, poses with her husband Rene Angelil, left, and son Rene Charles Angelil, center, as they arrive for the premiere of the film "Celine : Through the Eyes of the World" in Miami Beach, Fla. Tuesday, Feb. 16, 2010. (AP Photo/Lynne Sladky)
KATIE - 4/25/13 - Celine Dion invited Katie Couric into her recording studio for an exclusive conversation about her family, her husband’s cancer diagnosis, and her brand new music, airing on KATIE, distributed by Disney-ABC Domestic Television. (Photo by Ronda Churchill/Disney-ABC via Getty Images) CELINE DION, RENE ANGELIL
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