Katy Perry performed "Firework" on The X Factor on Sunday night, and Russell Brand flew to London from LA to help her get over her nerves. He wore a lei around his next at the airport, then changed into a grey jacket for the show itself. Katy's got a couple more performances coming up, and rumours suggest she'll be a married woman within days. She's combining her wedding planning with work, bringing out a fragrance and maybe launching a clothing line.
To see more pictures of Katy and Russell, just read more.