Harry Styles from One Direction got hit in the crotch by a shoe while he was on stage the other night . . . and he went down hard. Apparently it was an accident. A 14-year-old girl has come forward and apologized for it. (--She says she didn't mean to hurt him . . . she just wanted something of hers to touch Harry. She got thrown out of the show temporarily. But the band brought her back in . . . and they gave her shoes back too. Homer Simpson loved it!