To celebrate Clairo's 21st birthday on Sunday (Aug. 18), her tour mate Khalid surprised the "Pretty Girl" star with a super special backstage treat. The "Young Dumb & Broke" singer went full-fledged Sesame Street-themed and dressed up in an Elmo costume with his friends, who dressed up as Cookie Monster, Bert and Ernie.
In photos and videos shared to social media, Clairo wrote: "Khalid really just came into my dressing room as Elmo for my birthday," adding, "The group hug and then the sesame street song. so scary."
"Happy early birthday," Khalid tweeted.
The celebration continued through the night, as Khalid and his crew joined Clairo on stage — still in their costumes — as she performed "4ever."