LOS ANGELES-Jennifer Lopez reunited with her ex-husband Marc Anthony onstage over the weekend to perform a surprise duet at a New York concert.

On Saturday, salsa star Marc graced the stage at the Big Apple’s iconic Radio City Music Hall for the very first time, and his former wife helped the 47-year-old make sure it was an unforgettable evening for everyone in attendance.

Dazzling the crowd in a floor-length black sparkly gown, newly-single Lopez belted out songs in Spanish with Marc during his The Private Collection concert, MailOnline.com reports.

The show was a full family affair, as Marc also brought out his musician father, Don Felipe Muniz.

Jennifer has remained close to the father of her twins Max and Emme, staying on friendly terms since they split back in 2011 after seven years of marriage.

Their divorce was finalised in 2014.

She recently also reportedly ended her on/off romance to former backing dancer Casper Smart.