TMZ is reporting that singer Gavin DeGraw is currently hospitalized after being viciously assaulted by multiple attackers late last night in NYC! Oh man! Details after the jump.

Marisa Mendez

A source close to Gavin tells TMZ the singer — who lives in New York City — was outnumbered by several people during the attack.

Gavin’s rep says he is still under observation at Bellevue Hospital tonight … but would not be specific about his injuries.

Story developing …