Aaron Carter was allegedly attacked by a member of his opening act ILL STATE during his concert, according to TMZ.
The 29-year-old was performing at the Looney Bin in Bradley, Illinois on Friday night.
During Aaron's set, one of the ILL STATE members was in the crowd and grabbing people's phones, resulting in him getting removed from the venue by security.
Aaron reportedly said "Bye Felipe" - a take on Bye Felicia - while the man, who was Hispanic, was removed by security; he later returned and reportedly attacked the singer.
Aaron was reportedly left "bloody" and taken to the hospital.