Adam Levine couldn't have imagined smashing a woman in the head with his microphone would actually make her love him more, but watch for yourself ... it totally did.
During Maroon 5's show in Toronto Monday night ... the sound guys were having trouble and Levine was pissed ... so he chucked the mic in frustration, which took a crazy bounce and nailed a female fan in the face.
And Natalia Kills gets all the hate when someone else is physically hurting a fan, which could lead to emotional distress, which is not different to what Natalia has caused.
This is so unprofessional though. And obviously really dangerous just throwing a mic into the crowd like that in close proximity. Obviously it was going to fly off into the audience. Like I don't do extra on celebrities but this is... Just totally lacking in showmanship. He better be glad she accepted the "apology."