Migos

10:30 AM PT -- August's people deny any ambush, telling us ... most of the people in the hallway were either neutral or WITH Loose Cannon Slim. Further, they say August had no issue going on before Migos -- and claim the real issue is the promoter delayed paying August until 2 hours before the…

"Versace" rappers Migos got into an all-out battle royale at one of their shows ... where all 3 members of the group ended up going loco on their fans. The melee started Sunday night at LimeLight nightclub in Nashville -- when according to sources ... one member of the group had a gold chain…