PHOTOS: Lily Allen or Lily Alien?

Question to Lily Allen: Seriously? This is what you wear to go out to eat?

The British pop star sported a multi-colored fright wig and glittery silver eye shadow when she went to eat at upscale Nobu restaurant in London on Wednesday.

"She looked ridiculous," one witness told OK!. "People were turning their heads to stare, but not because she's famous."

This look is a huge departure from the Lily we saw on Monday at the London Launch of her new jewelry line.