Gywneth Paltrow stepped out in London tonight for the special Beyoncé 4D event. Gwyneth, who has been spending some time in her husband's hometown recently, arrived at Shepherds Bush Empire for the exclusive evening in a high ponytail and belted sundress. The soirée will reportedly include a screening of a making-of documentary that will take guests behind the scenes of B's new album, 4, which hits stores tomorrow, as well as a special performance by the superstar. Beyoncé and Gwyneth are good friends, and Gwyneth was in the audience at Beyoncé's Glastonbury Festival show over the weekend to cheer on B as the singer closed out the musical celebration. Gwyneth will get the chance to reunite with some of her co-workers at the party tonight. Glee stars Chris Colfer and Kevin McHale were also on hand for B's bash, and Gwyneth tweeted a fun picture of her and Kevin hanging out together inside.