Multiple sources tell us ... the hotel was flooded with complaints from guests who claim the dance squad -- composed of kids ranging between the ages of 8 and 13 -- were causing all sorts of noise and even throwing objects out of their windows.
We're told the hotel threatened to boot the kids from the premises ... but "AGT" producers swooped in at the last minute and begged management to let them stay. The hotel agreed, but made it clear -- if they heard one more complaint from other guests, the group would be forced to hit the road.
A rep for the hotel tells TMZ ... "We gave them a verbal warning to let them know if the problem persisted they would be kicked out of the hotel."
So far, we're told the kids got the message loud and clear ... and the gang is still staying at the hotel.