Christina Perri is engaged to her boyfriend, Paul Costabile -- see her stunning ring!

Christina Perri is off the market!

The "Thousand Years" singer got engaged to her longtime boyfriend, Paul Costabile, this week, and shared the happy news on her Instagram account.

Perri posted a photo with her brand new bling and captioned the snap, "paul asked me to marry him tonight & i said yes!"

paul asked me to marry him tonight & i said yes!

A post shared by christina perri (@christinaperri) on

Costabile is a host and he also posted a romantic message after the proposal. "I knew I wanted to ask this girl to marry me the day she walked into the green screen for an interview almost 4 years ago," he shared. "I finally asked her right here tonight and she said yes !!!"

The duo have largely kept their romance under wraps, but on a couple rare occasions they've shared their love with fans.

happy 30th birthday to the love of my life @paulcostabile! ❤️

A post shared by christina perri (@christinaperri) on

Congrats to the happy couple!

PHOTOS: See Christina's performances recently

12 PHOTOS
Christina Perri in recent appearances
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Christina Perri in recent appearances
PHILADELPHIA, PA - JULY 09: Christina Perri opens for Billy Joel at Citizens Bank Park on July 9, 2016 in Philadelphia, Pennsylvania. (Photo by Myrna M. Suarez/Getty Images)
NEW YORK, NY - NOVEMBER 25: Christina Perri poses backstage at the hit musical 'Finding Neverland' on Broadway at The Lunt Fontanne Theater on November 25, 2015 in New York City. (Photo by Bruce Glikas/FilmMagic)
PHILADELPHIA, PA - JULY 09: Christina Perri opens for Billy Joel at Citizens Bank Park on July 9, 2016 in Philadelphia, Pennsylvania. (Photo by Myrna M. Suarez/Getty Images)
MIAMI, FL - SEPTEMBER 09: Christina Perri performs at American Airlines Arena on September 9, 2015 in Miami, Florida. (Photo by Sergi Alexander/WireImage)
MIAMI, FL - SEPTEMBER 9: Christina Perri performs at the American Airlines Arena on September 9, 2015 in Miami, Florida. (Photo by Alexander Tamargo/Getty Images)
MIAMI, FL - SEPTEMBER 9: Christina Perri performs at the American Airlines Arena on September 9, 2015 in Miami, Florida. (Photo by Alexander Tamargo/Getty Images)
VANCOUVER, BC - AUGUST 30: Singer-songwriter Christina Perri performs onstage during 'The Girls Night Out, Boys Can Come Too' tour at PNE Amphitheatre on August 30, 2015 in Vancouver, Canada. (Photo by Andrew Chin/Getty Images)
VANCOUVER, BC - AUGUST 30: Singer-songwriter Colbie Caillat performs onstage during 'The Girls Night Out, Boys Can Come Too' tour at PNE Amphitheatre on August 30, 2015 in Vancouver, Canada. (Photo by Andrew Chin/Getty Images)
ROHNERT PARK, CA - AUGUST 23: Christina Perri performs during the 'Girls Night Out, Boys Can Come Too Tour' at Weill Hall - Green Music Center, Sonoma State University on August 23, 2015 in Rohnert Park, California. (Photo by C Flanigan/Getty Images)
LOS ANGELES, CA - AUGUST 20: Christina Perri performs at The Greek Theatre on August 20, 2015 in Los Angeles, California. (Photo by Jeff Golden/Getty Images)
AUSTIN, TX - AUGUST 16: Singer-songwriter Christina Perri performs in concert at ACL Live on August 16, 2015 in Austin, Texas. (Photo by Rick Kern/WireImage)
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