Look over there ... for on-set medical staff, because Jaida Essence Hall's palm is coming for you.

Following RuPaul's Drag Race All Stars 7's explosive premiere Friday, the returning season 12 champion tells EW the highly anticipated all-winners edition of the Emmy-winning series began with a bang ... atop Raja's face. Yes, the Milwaukee native actually (accidentally) slapped the season 3 victor while they rehearsed what was supposed to be a mimed smack during a performance of RuPaul's new song "Legends," and Raja reportedly took it well.