Lifestyle Beauty & Style Celebrity Fashion Jennifer Lopez Surprises 'American Idol' Singer Pia Toscano on Her Birthday "Pia was shaking when Jennifer walked in the door because she was so touched and excited," an onlooker tells PEOPLE of the birthday girl By Patrick Gomez Patrick Gomez Patrick Gomez is the Editor in Chief/General Manager of Entertainment Weekly. Formerly at People magazine and The A.V. Club, the Critics Choice and Television Critics Association member has appeared on 'Today,' 'Extra!,' 'Access Hollywood,' 'E! News,' 'CNN,' and 'Nightline,' and can be seen frequently on 'Good Morning America.' Follow the Texas Native at @PatrickGomezLA wherever your media is social for all things 'For All Mankind' 'Top Chef,' and puppy related. People Editorial Guidelines Updated on December 8, 2020 10:55AM EST Photo: Vivien Best Jennifer Lopez has been known to celebrate her birthday in epic fashion, but on Tuesday night it was all about her former backup singer, Pia Toscano. Toscano – a former American Idol contestant – was celebrating her 26th birthday at Crustacean Beverly Hills when in walked Lopez. “Pia was shaking when Jennifer walked in the door because she was so excited,” an onlooker tells PEOPLE of the birthday girl. “She was so touched that Jennifer attended.” Toscano sang backup for Lopez when the Idol judge performed her hit single “I Luh Ya Papi” on the hit Fox reality singing competition last season. “Jennifer was one of a handful of people that actually brought Pia a gift,” says the onlooker. “And it was the biggest basket in the bunch!” Lopez attended the party with her pal Leah Remini, and the two shared a cocktail (the Sweet P, named after the birthday girl) with Toscano and chatted the night away in a cabana. Lopez and her gal pal left just before midnight, but not before snapping a selfie! Want more stories like this? Sign up for our newsletter and other special offers: sign me up Thank you for signing up! Close