AceShowbiz -

Nicole Scherzinger didn't come solo when attending U.K. premiere of her upcoming movie "Men in Black 3". The former lead singer of The Pussycat Dolls arrived hand-in-hand with her on-and-off boyfriend Lewis Hamilton when showing up at the Odeon Leicester Square in London for the special screening.

Scherzinger flaunted her toned leg in a black Cengiz Abazoglu Haute Couture gown with a thigh-high slit. She completed her look with Giuseppe Zanotti heels, a Jimmy Choo bag, and Vanessa Leu & Adeler jewelry. The F1 racing driver, meanwhile, looked sharp in a gray tuxedo.

Alice Eve also opted for dark-colored outfit for the occasion. The actress, who plays Young Agent O, pulled off a futuristic look by wearing a sleek Antonio Berardi Spring 2012 dress with patent leather panel. She completed her look with a pair of asymmetrical Roger Vivier sandals.

Emma Thompson, who portrays older Agent O, came with her daughter. The actress chose a more casual attire and matched her daughter's white appearance by donning a simple white blazer and pants. The gentlemen spotted coming to the event included Jay-Z, Will Smith and Josh Brolin.

"Men in Black 3" follows Agent J who has seen some inexplicable things in his 15 years with the MIB, but nothing perplexes him as much as his partner Agent K. As K's life and the fate of the planet are put at stake, J will have to travel back in time to put things right.

Smith reprises his role as Agent J, Tommy Lee Jones returns as Agent K, while Brolin is added to the cast ensemble as a younger version of Agent K. As for Scherzinger, the former judge on "The X Factor (US)" will tackle the role of villainous Lily. The movie is scheduled to open in the U.S. on May 25.

In anticipation of the movie release, a new featurette titled "Building a Better Alien" was unleashed for viewing pleasure.