David Cook and Gavin DeGraw Co-Headlining Fall Tour
David Cook and Gavin DeGraw Co-Headlining Fall Tour

Gavin DeGraw, the singer who is recovering from a brutal street assault in New York City early Monday, has been advised by his doctors to stay off the road until later this month. DeGraw's rep tells Billboard in a statement that the "I Don't Want to Be" crooner will need "additional time to recover" and will miss eight more concert dates opening up for Maroon 5 and Train.

Cities he'll miss out on include Bethlehem, Pa. (Aug. 14) and Chicago (Aug. 20). Two tour stops set for this weekend (Long Island and Mansfield, Mass.) were nixed following the attack. He'll return to the tour in Columbia, Md. on Aug. 24.

Gavin on Attack: 'I Don't Remember Much'

DeGraw, 34, suffered a concussion, broken nose, black eyes, cuts and bruises following an altercation with a "group of assailants" in the early hours of Monday, his rep confirmed to us. He was taken to Bellevue Hospital by ambulance and was listed in stable condition until his release Tuesday afternoon.

The attack occurred on First Ave. between 5th and 6th Streets shortly after DeGraw left a nearby club he owns with his brother. He was attacked by three male assailants, according to reports, and he then stumbled farther north and was hit by a cab 13 blocks away. He was not seriously injured in that collision but a witness called for help and DeGraw was taken to the hospital.

Police are investigating the assault.

On Tuesday he sent a message to his fans. "Hi my friends," he wrote on Twitter. "Honestly, I don't remember much. I only know I can recover from here."

DeGraw, a 3-time Hot 100 charter, had been out promoting his upcoming album, "Sweeter," which hits stores Sept. 20. He recently spoke to Billboard.com about changing up his writing process for the new album.