Lady Gaga Hit in Her 'Poker Face'

Lady Gaga got a floral surprise during a concert in Atlanta last night -- right in the head!

See some of Lady Gaga's wildest looks

Gaga, 23, was performing her hit single "Poker Face" when an overzealous fan threw a bouquet of flowers onstage and accidentally smacked the singer in the head!

Gaga, like a true professional, continued her performance without a hitch.