While serving as a guest judge on 'RuPaul's Drag Race,' Vanessa Williams watched the show's contestants prep for competition on the other side of a two-way mirror.

One drag queen "had a tuck that was unbelievable," she said on 'Lopez Tonight' (weeknights, 12AM ET on TBS). "I couldn't find out where the stuff was."

"Where does it go, on vacation?" joked George Lopez. She replied, "I have no idea! All I saw was some silver gaffer's tape, and it was gone. Gone."