Katy Perry got her chance to be a '70s game-show host during her appearance on The Ellen DeGeneres Show.
Fulfilling her dream, the 28-year-old singer wore an over-the-top pink suit and a funny mustache.
Perry tweeted, "WHAT THE HECK IS GOING ON HERE?? Tune in to @TheEllenShow tomorrow to find out!" along with the photo.
The episode features the celebration for Ellen DeGeneres' 26th birthday.