The actress-singer – who just wrapped the first run of her Las Vegas residency All I Have – joined the late-night host for the latest iteration of his beloved Ew! talk show skit.
NBC / WENN
Lopez rocked pigtails, knee-high socks and a pink cat sweater when she played Gabby, the latest guest on Ew!, the show hosted by bratty teenage girl host Sara (Fallon).
The perpetually grossed-out gal pals tapped into the Gen Z zeitgeist, taking animated Snapchat selfie videos and twerking to Rihanna's latest hit '' Work.''
WENN / NBC
Lopez, 46, is just the latest A-list guest to dress up and feign disgust: Channing Tatum, Emma Stone, Taylor Swift and even FLOTUS herself Michelle Obama have all sat down with Fallon's alter-ego.