What is the most suitable song for a person who lost a bet and as a result now needs to walk through

the streets in a bunny costume singing Katy Perry songs?

She said that if her sports team would loose the game, she would walk through the street in a bunny costume and would sing Katy Perry songs...and her team actually did loose. Could you please name some suitable songs for her doing that? She asked for a wish for a song. Cannot think of any. Thanks in advance