It’s all go at the Men In Black 3 premiere in Leicester Square tonight. Whoever's overseeing the celebrity guest list has quite the job on their hands because tonight, London's gone totally A-List. So far, we've seen Will Smith take to the red carpet with co-stars Emma Thompson, Alice Eve and Josh Brolin - they even did a big photo pose together (see below).
While the beautiful Nicole Scherzinger (who is showing off her right leg in a long black floor-length Angelina Jolie Oscar-style dress with thigh-high split) has arrived looking super loved up with her fella Lewis Hamilton. Aww!

We have to say the star of the film, Will, is looking gorgeous in a snazzy Tom Ford suit too - and earlier we saw him start rapping with guests Rizzle Ricks on the red carpet (yes, really). Bet they are completely star-struck right now.

And even more exciting - Jay-Z has just turned up (we weren't expecting him) and he made a rather grand entrance (well, he got a lot of screams).
We'll bring you more news as we get it...