Whenever "Late Late Show" host James Corden joins forces with a singing celebrity, the result is music magic — and a whole lot of laughs.
Corden and Lovato tried something new with a singing-telegram gag, which saw them decked out in matching jackets and derby hats as they hit the town to entertain a few unsuspecting folks.
There was the Drybar employee who was treated to a bevy of racy blow-out jokes; an executive who heard a ditty about his love of mayo; and there was even a dentist who kept his teeth but lost his hair during their visit.
After a hard day's work, the duo went for some refreshments and offered up one more musical moment.
"Would you rather money for the teas or we sing you a song?" they asked the men making their drinks.
"Money," was the deadpan reply.
Watch it all for yourself, and don't miss the moments in between the music — Corden and Lovato's in-transit banter might just be the best part.
Want more "Late Late Show" fun? Check out the good time Corden had with actress-singer Jennifer Hudson.