"First of all, it's four passionate people who really care about the artists," he told People.
"Secondly, it's four people who just got thrown onto a dancefloor without any sort of choreography and were told 'dance together'. So some toes get stepped on - and we're figuring it out."
"Listen, since this show started there have been very different, distinct personalities," explained Randy.
"It's always been a very happy, funny, dysfunctional family. Everything is great. We're getting along."
He joked: "Me and Keith and Ryan have been fighting a lot - but that's just today."
The new season of American Idol airs on 5* on January 17.