A blonde blunder as Lily Allen goes GaGa

Going platinum: we think Lily looks better as a brunette

She went for dinner at Nobu with her ex-boyfriend, DJ Seb Chew, who has always been a shoulder for her to cry on since their split two years ago.

Undercover: Lily Allen in a wig, with a hooded Seb Chew

If she was trying out a new look, we reckon she'd be better off staying brunette.

Anything that makes you look like fashion crackpot Lady GaGa can never be a good thing.

Her see-through top would have made it very difficult for poor Seb to retain eye contact throughout the dinner too. The lucky so-and-so.