Selena Gomez added a surprise song to her set at the Jingle Ball concert - a cover of Katy Perry's "The One That Got Away."

She added her own twist by slowing the song down, and gave a little speech saying "[Katy's] been really wonderful and just a really good person to me. In honor of Katy, we wanted to do this song."

Which version do you like better? (And a thank you to Fatima for sending this in too!)

Source: Celebuzz