Late night host/cast alumnus Jimmy Fallon and musical guest Justin Timberlake returned to Saturday Night Live this week with some familiar sketches and celebrity cameos. Paul McCartney, Madonna, and Mayor Michael Bloomberg briefly popped up, with the NYC mayor at the Weekend Update desk as Fallon officially passed the Late Night reins to Seth Meyers, who’ll take over his seat when Fallon moves to The Tonight Show. Check out highlights from last night: