Katy Perry stopped by the Finalmente Club Drag Show in Lisbon, Portugal last night, and it seems like even she was stunned when one of the glammed up drag queens pulled her up onstage! Firework singer was introduced to some of the fabulous ladies, and it seems like her body-hugging, shimmery rainbow dress was a hit with the crowd.

Katy kicked off her California Dreams tour in Portugal on Sunday, and she tweeted, "OMG! What a KICK OFF! PORTUGAL you were EVERYTHING I needed for the start! MILANO... I see U NXT!" Sounds like she really is living the dream!