Monica reportedly jumped off stage in a middle of a gig to defend a female fan who was allegedly being attacked.
In footage shared on , the 42-year-old singer at Detroit’s Riverfront Music Festival over the weekend to confront someone in the crowd.
‘You don’t hit no f***in’ lady like that,’ she said in a video, before the man appeared to be kicked out of the festival by security.
The Angel of Mine star returned to the stage and apologised to her fans for the situation.
‘That s**t triggered me,’ told the crowd. ‘I seen him punch that lady in the face, I lost my fin’ temper. I apologise y’all. I apologise from the bottom of my heart.’
She added: ‘I was gonna knock [his] ass out with this f***in’ mic.’
She later apologised again in response to a post about the incident on The Shade Room on Instagram.
She wrote: ‘I apologized there & I’m apologizing here for my actions but no one would take action! I was so triggered, I watched & she didn’t appear to even know him! It appeared to be about space during a packed concert!
‘He punched her with ALL his strength! My intentions were to prevent her from being hit again & she wasn’t! I asked for help, it fell on deaf ears! It was like seeing my mother or an aunt be assaulted!!
‘This woman was 50+ I pray she’s ok! Happy Sunday to everyone! (sic)’
Meanwhile, a spokesman for Riverfront Music Festival has thanked the Boy Is Mine singer for her ‘courage and decisive intervention’.
In a statement to CBS, he said: ‘First and foremost, we want to extend our heartfelt gratitude to Monica for her courage and decisive intervention during an unfortunate incident at our Festival.
‘Her actions demonstrated a commitment to the safety and respect of her fans, reinforcing our belief that she is not just an extraordinary talent, but an extraordinary individual as well.’
He added that the organisers ‘strongly condemn any form of violence, particularly against women’, and the team is working with police to make sure ‘the individual involved is held accountable’.