Christina Aguilera risks nip slip in daring slit-to-the-navel dress while performing in the Hamptons

The Genie in a Bottle singer was performing at the Apollo concert in the Hamptons and dedicated a song to her fiancé,

Christina Aguilera showed off an impressive cleavage as she performed in front of an A-list crowd.

The singer nearly spilled out of her low-cut gown as she belted out her hits at the Apollo concert in the Hamptons.

Christina, 34, told the audience that it was a special weekend for her as she was also celebrating her daughter's first birthday.

Showing off the vocal skills that made her famous, Christina took to the stage in the printed gown with a thigh high split.

Wearing her blonde locks wavy and delicately tucked behind her ear, Christina also appeared on stage in a black hat.

The Beautiful hitmaker dedicated songs to her fiancé Matthew Rutler and their daughter together, Summer Rain.

Telling the crowd, which included Jack Nicholson, Jimmy Fallom, New York Mayor Bill de Blasio and Mary-Kate Olsen Christina said: "This is a special weekend, it's my first daughter's first birthday."

Speaking to People, Christina was looking forward to the celebrations: "We're going to celebrate today as a family and have a little party later in the month. She's so beautiful."

The concert was held at billionaire philanthropist Ron Perelman's East Hampton estate, and was to help fundraise for education programme's at Harlem's Apollo Theatre.