The attention-hungry socialite experimented with different hair styles at home last night and was quick to share the moment with her fans. Pouting Kim tweeted the picture of the red fringed hairpiece and wrote: "Red head." Another snap showed Kim pursing her lips while wearing a glossy blonde bob. She said: "Do blondes have more fun?" While Kim was in clearly a jovial mood, it's been reported her ex husband Kris Humphries is demanding £4.5million from the star to walk away from their marriage. Blonde ambition ... Kim KardashianSources have told US gossip website TMZ that Kris has offered curvy Kim an ultimatum; pay up or endure and ugly, public trial. Their August wedding, which was filmed for her US telly show, cost over £6MILLION, but earned the couple £11million from media deals. In a statement, Kim — famed for her curvy rear — said: "This was not an easy decision. "I had hoped this marriage was forever, but sometimes things don't work out as planned."