Jason Derulo and Luke Bryan Duet 'Want You to Want Me'

"How could I not?" Bryan asked. "This was too much fun."

"How could I not, this was too much fun," he wrote. "@jasonderulo , you're a sanging fool. Oh yeahh."

"This is why you're 1 of my fav ppl on the planet!" Derulo added. "Talented af & know how 2 have a good time! Falsetto on point bruh."

Derulo, 25, released his album "Everything Is 4" earlier this summer, while Bryan's latest work, "Kill the Lights," dropped last week.