FKA Twigs
FKA twigs arrives at the 2015 MTV Video Music Awards in Los Angeles, California, August 30, 2015. Reuters/Danny Moloshok

Robert Pattinson's fiancee FKA twigs gave a mesmerising performance at an exclusive party by MAC Cosmetics in celebration of London Fashion Week on Thursday. The 27-year-old also danced in her sensuous style and belted out the lyrics to her songs in her ethereal and unique voice.

Twigs, whose real name is Tahliah Debrett Barnett, was dressed in black cut out dress with fishnet stockings as she showed off her stylish dance moves with a male choreographer. The songstress accessorised her look with bondage-themed necklace and black ankle-length boots.

“She’s like a black Bjork,” men’s wear designer Adrian Sauvage told WWD about twigs' performance.

“Really, she’s so mesmerizing,” he added. The curly-haired beauty is currently focusing on her career and busy with various shows. There is speculation in the media that her engagement and subsequent wedding to Pattinson has been “called off.” According to Sugarscape, the “Twilight” star wants to start a family immediately after marriage while twigs wants to focus on her career.

"They're not on the same page when it comes to their future," an insider tells Heat (via Sugarscape) "Rob wants to get married and have kids, and Tahliah isn't in any rush. She wants to one day, but not now - they fight about that, as Rob pushes her. But she's too focused on her music career.

Twigs, however, is not happy that the media is obsessed with her love life with the Hollywood star. In her interview with The Sunday Times, the notoriously private artist was asked if she was getting married to Pattinson.

“Who told you I was getting married?” she said, expressing her discomfort over the question. Twigs also added that she is is “not prepared to talk about her private life” as it makes her “feel nutty.”’

Contact the writer at feedback@ibtimes.com.au, or let us know what you think below