Lily Allen Wigs Out

4/19/2007 3:53 PM PDT BY TMZ STAFF
Enchanting British pop sensation Lily Allen has been vacationing in Los Angeles and was caught yesterday in Hollywood -- on her best behavior.

After a day of pampering at a salon, Allen decided that her newly streaked hairdo needed covering up, and popped into a wig shop on the Walk of Fame. Britney would be so proud!

She purchased a charming pink wig and was on her way ... right after sending this adorable message to all her fans. No wonder she just cancelled her U.S. tour!