Kim Kardashian's inner bimbo is no longer a hidden trait - the reality TV star unveiled her new almost-blonde do over the weekend.

Paris Hilton's pal stepped out in a powder blue dress after having spent a lengthy stay at the salon transforming her raven locks to a sandy shade of light brown.

Kim decided to give Britain's Got Talent's Susan Boyle a run for her money in the publicity makeover stakes by showing off her new look on Twitter.

Kim wrote: "I WENT BLONDE!!!! Do you like it?"

Several fans replied: "It's pretty Kim, but now you have to do your eyebrows" and, "It looks amazing and brings out more of an exotic look".

UPDATE: Kim's faux-blonde look was indeed false!

Kim wrote on her blog earlier today:

“It's a wig! Did I have you fooled? I did a fabulous photo shoot this weekend and they put this hair piece on! I haven't taken it off since, because I'm really loving the look.

"I've been wearing it around New York and everyone thought it was my real hair! It's making me want to dye my hair and maybe go lighter for the summer. What do you think? Should I dye it for real?”

See Kim's darker look below