The 33-year-old rapper was said to be furious when fan Angel Zuniga complimented his fiancée after he spotted her at the O.C. Fair and Kelly reportedly launched himself at the man.
TMZ has obtained video of MGK and Megan stepping off a ride, with the rapper approaching two men standing outside it and slapping one of them.
Angel's brother Nelson Zuniga told TMZ that he and his family were waiting to get on the UFO ride when Megan and MGK stepped off it.
He claimed that MGK slapped Angel and Angel tried to retaliate with a punch but missed.
Witnesses told TMZ that the rapper's bodyguards stepped in and pushed one of the men back into the barricade but unfortunately Megan got caught in the crossfire.
She is said to have been shoved into the fence during the incident.
Meanwhile, it was recently reported that Megan and MGK's wedding is back on after they called it off in February.
A source told Us Weekly: "They’re on the right track again. They’ve had so much success in therapy together. As they start to trust each other, they’ve been talking about getting married again.
"There haven’t been any deposits put down. But they are both on board again and are excited to start planning the new version of their wedding.”
Before she started dating Kelly, Fox was married to Brian Austin Green and the couple share children Noah, 10, Bodhi, nine, and Journey, six.
MGK has daughter Casie, 13, with his ex Emma Cannon.
On the same day that Glastonbury welcomed back Margate's adopted sons, The Libertines, Margate itself put on it's very own Leisure Festival as it...
Sheffield's very own all girl group Pretty Fierce are still on a high after the recent release of their debut single - 'Ready For Me'.
Three nights before the end of his current tour Will Varley returned to his home town of Deal to delight a sold out crowd in The Astor Theatre.
With only a few days to go before Portsmouth based songstress and producer WYSE releases her new single, 'Belladonna', we caught up with her to find...
Colorado raised, Glasgow educated and Manchester based Bay Bryan is nothing if not a multi-talented, multi-faceted artist performing as both...
Former Marigolds band member Keelan Cunningham has rediscovered his love of music with his new solo project Keelan X.
Wiltshire singer-songwriter Luke De Sciscio, formally known as Folk Boy, is set to release is latest album - 'The Banquet' via AntiFragile Music on...
Electronic music pioneer and producer Annie Elise says that the release of her first EP - 'Breathe In, Breathe Out' feels "both vulnerable and...