The singer, 23, and model, 21, have ended their relationship of seven months.
Sources said the couple had a rocky relationship and have previously broken up and got back together before. They were fighting at Gigi's birthday celebrations in April, and have previously 'broken up and got back together a few times,' a source told E!.
But the couple may reconcile again, another source added to E! But for now they are off each other.
