Katy Perry and Queen Rebecca Black finally sharing a stage? I just can't...! Both pop superstars 'nailing' an acoustic version of Ms Black's viral hit "Friday" during Katy's concert as part of her 'California Dreams Tour'
Katy has broken a record formerly set par Gaga for having a certain number of singles on an album hit the haut, retour au début of the charts! GO KATY!