Arthur Attire! Who Was The Best Dressed At The London Premiere?

April 19 2011, Published 10:02 a.m. ET
Breaking Celebrity News Style & Beauty Editor
It was a style showdown in London on Tuesday, as Arthur stars Helen Mirren and Greta Gerwig got some fierce red carpet competition from Russell Brand's chart-topping wife Katy Perry and Breaking Celebrity News has all the photos.
Katy Perry left the boho babe at the Coachella Music Festival, where she was partying over the weekend, and rocked a curve-hugging, one-shoulder Philip Armstrong gown. The glammed-up gal paired the nude, impeccably embellished number with matching Brian Atwood pumps for a flawless finish. Her hubby Russell Brand was also dressed to impress in Dolce & Gabbana.