Paris Hilton Sued by Hair-Extension Company; Mariah Carey Releases 3-D Perfume Ad

• Beauty Brand Illamasqua is opening its first-ever store in London. [InStyle UK]

• Christina Ricci debuted a new caramel-highlighted bob at last night’s launch party for BlackBerry Torch. [BellaSugar]

• Hairtech International is suing Paris Hilton for $35 million. Hilton is the face of the company’s Dreamcatchers hair-extension line, yet she went out wearing another brand’s fake locks. [StyleWatch/People]

• Learn how to rock a blunt haircut without worrying about stringy locks. [BellaSugar]

• Mariah Carey has just released a heavily Photoshopped 3-D interactive ad for her latest fragrance, Lollipop Bling. [Jezebel]