Haim served as musical guests on Thursday night's (Oct. 22) episode of Late Night with Seth Meyers with a little help from none other than Robert Pattinson.
Kicking off the sisters' performance of their single "3 AM," the actor made a surprise cameo by attempting to FaceTime the band, who have him saved in their phone as "Emotional Vampire."
"Hey, what's up? Ummm, I'm just calling to see if you're still up but...it went straight to voicemail. That's too bad. If you're up or whatever, you know where to find me," Pattinson says before hanging up.