Katy Perry Wears Marchesa Tutu in London for Part of Me Premiere

The Katy Perry: Part of Me star attended the London premiere of her film in a frilly Marchesa dress and, shockingly, there wasn't a single whip cream bra in sight!

Katy Perry In Marchesa -'Katy Perry: Part of Me 3D' London Premiere - Red Carpet Fashion Awards

Katy Perry UK premiere of Katy Perry Part of Me - Arrivals London, England - 03.07.12 Stock Photo - Alamy

Katy Perry flies solo as she wows on the red carpet for Part Of Me premiere

Katy Perry Wears Thong, Corset Skirt to Billboard Women in Music

Katy Perry flies solo as she wows on the red carpet for Part Of Me premiere

Katy Perry's best performance outfits over the years - Las Vegas residency, more, Gallery

Katy Perry: Part of Me' UK Premiere

Katy Perry makes one young fan's day at London premiere of Part Of Me

Katy Perry flies solo as she wows on the red carpet for Part Of Me premiere

Katy Perry's Wows in London

Katy Perry UK premiere of Katy Perry Part of Me - Arrivals London, England - 03.07.12 Stock Photo - Alamy

Watch Katy Perry premiere footage