Braless Jennifer Lopez, 55, wows in plunging sequinned gown after singing in sexy leotard

POPSTAR Jennifer Lopez drinks in the adoration at a party to celebrate a fashion designer pal’s career.

The On The Floor singer, 55, clutched a gem-encrusted “Beyond Beautiful” soft drinks beaker from her fans’ group the BBJLovers as Elie Saab marked 45 years in high couture.

J-Lo, wearing a sequin dress adorned with feathers, was joined by Celine Dion, Monica Bellucci and Halle Barry at the bash in Riyadh, Saudi Arabia.

She turned heads in a plunging leotard in an outfit complete with matching diamante boots.

Newly divorced J-Lo, 55, performed Gloria Gaynor's I Will Survive, as well as her classics Waiting for Tonight, On the Floor and Let's Get Loud.

The Hustlers star opted for a bejewelled gold leotard with tassels and a plunging neckline.  

She opened the show and made a notably grand entrance on a floating stage with a feather-adorned arch, then whipped off her fur robe.

J-Lo filed for divorce from Ben Affleck, 52, in August just two years after they married.

The Sun recently revealed Jennifer is planning to head back into the studio to use her heartbreak as inspiration for a new album.

A source exclusively told The U.S. Sun J-Lo's album is shaping up to be her "most emotional yet".