If Mtv addresses it at all I'm going to trust that they'll handle it in the most sensitive way that they can.
UB#1: I think it's too obvious to go with Dancing With the Stars. Since it said the celebrity could not be voted off I'd guess a celebrity judge. Like maybe "The Hoff".
UB#2: I wouldn't consider Janet "a non singer". Has Beyonce' refused to work with anyone that JayZ helped out?