Jason Derulo & Daphne Joy: Splitsville

Jason Derulo and Daphne Joy are now two of the hottest single people in the world, because they've parted ways.

A source tells TMZ Daphne was the one who pulled the trigger ... but there's no hard feelings in the split.

The two began dating late last year after hooking up in the UK. Our website went off its hinges after we posted shots in March of the two vacationing in Mexico.

Daphne's got a 3-year-old son named Sire with 50 Cent.

We reached out to a rep for Jason about the split who had no comment.