Kevin Mazur/Getty Images for iHeartMedia; NBC
On Saturday, the SNL star and comedian posted on his Instagram Stories a screenshot of the pop star performing at iHeartRadio's KIIS FM 2018 Wango Tango event, which was livestreamed.
"Are you f--king kidding me!!!?? So f--king lit," Davidson wrote, including four heart eyes emojis.
It is unclear if he attended the Los Angeles concert in person. Davidson had opened for legendary comic Dave Chappelle at a gig in Atlantic City on Friday and Grande had gone along to support him.