The "SNL" alum gave a lively rendition of the Ethel Merman hit "Everything's Coming Up Roses" in her second time hosting the comedy show.
The actor offered to switch seats on a plane so the rapper could sit with his daughter — seeming to not realize he was talking to a fellow celebrity.
The "Saturday Night Live" alum poked fun at the iconic "A Christmas Carol" tale during his co-hosting gig with Steve Martin this weekend.
The comedy pals went for the jokey jugular with series of good-humored jabs.
This week's "Saturday Night Live" co-hosts let the jokes fly and mocked host Jimmy Fallon.
But the real star of the segment was Selena Gomez.
"Harris" called Short her "load bearing wall" who's "always on top of my basement."
"It's hard to keep doing music when people don't necessarily take you seriously," Gomez told Vogue in a new interview.
File this under "Actually Pleasant Celeb Encounters."
Deny climate change all you want.