MC Harvey has vented his anger on Twitter after So Solid Crew were dropped from the line up of Lovebox this weekend.
The rapper tweeted: "Yes LoveBox is cancelled because another artist don't want us on the same stage as them. UK artists blocking SoSolid. Wow".
"Sorry to everyone who has bought tickets to see us at Lovebox. We have been removed with no valid explanation."
Harvey then went on to list his group's achievements, adding: "So Solid Crew is a scapegoat for the industry some conspiracy ting",
"Platinum albums Brit Awards & Mobos endless top tens and this is how Great Britain repay us".
Finally he vowed to expose the reason they were dropped, writing: "People will find out who the artist is. And when I see them I will confront them personally".
Mega Man also tweeted his frustration, adding: "We will be issuing and press release and naming the act/artist who was brought to our attention."
But a spokesperson for Harvey told The Sun the group were dropped for a different reason.
"The demand for So Solid Crew fans and the the number of punters at Lovebox (30,000 plus) is too much for the venue. The boys do feel victimised slightly but we are one of four acts who has also been given the same information so it was a amicable decision. We hope the fans have a safe day and enjoy the show."