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*Tupac must be rolling over in his grave.

The late rapper’s classic track “Dear Mama” was playing at the Gotha Club in Cannes when someone handed the mic to Justin Bieber, who is in town to take in the Cannes Film Festival.

Flanked by Rick Ross, the 20-year-old singer rapped along with the track.

Watch below.

The Canadian’s DUI case in Florida resumes June 25, with a trial date set for July 7.