Justin Timberlake took a night off from clowning around with Jimmy Fallon on the Tonight Show last night to swing by fellow NBC host Seth Meyers’ show for a skit with the general conceit that the pop star’s written his pal a new theme song. “When you’re looking for fun / On your TV / Just switch it on over / To NBC!” Timberlake sings before launching into a series of what’s clearly meant to be Fallon-referencing couplets. It spirals further out of control from there. Watch it below.