''First of all, it's four passionate people who really care about the artists. Secondly, it's four people who just got thrown onto a dance floor without any sort of choreography and were told 'dance together.' So some toes get stepped on - and we're figuring it out.'' He added, ''Randy and Ryan are huge personalities. I do my best to keep them civil. Oh, and Mariah and Nicki are in there, too.''Mariah Carey jokingly says, ''Keith Urban and Randy Jackson have gotten into some verbal spats as well. They fight constantly. I find it offensive."