50 cent's baby mama,Daphene Joy breaks up with Jason Derulo

Daphne Derulo has called off her relationship with singer Jason Derulo.

The 29-year-old  bikini model had been dating the 26-year-old singer for over seven months.

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

The beauty has a three-year-old son named Sire with rapper 50 Cent.