Apparently a blue wig didn't provide enough color for Katy Perry!
Clad in a leopard jacket and a tight leather skirt, the 25-year-old "California Gurls" singer sported rainbow locks -- presumably from clip-in hair extensions -- while attending the Scissor Sisters concert in NYC Wednesday.
"I bow down to Ana Matronic," she Tweeted of the group's female vocalist. "I [heart] Scissor Sisters :)"
Also on hand for the concert? American Idol runner-up Adam Lambert, Susan Sarandon and actress Parker Posey.
Tell Us: Do you dig Katy's technicolor tresses?