Police are investigating an assault that happened backstage at the Radio Xtra Live event at Arena Birmingham last night (5 October).
It's understood that a man, believed to be a rapper called Krept, sustained a slash wound during the assault, which happened at around 10pm. He was treated by on site medical staff and did not require hospital treatment.
The rapper, who's real name is Casyo Johnson, thanked fans for their messages via twitter on Sunday (October 6) before saying: "Can't keep a good man down."
Anyone with information can contact West Midlands Police via Live Chat at www.west-midlands.police.uk 8am - midnight, or call 101 anytime.
To remain anonymous call Crimestoppers on 0800 555 111. Please quote crime number 20BW/236014J/19.