The stars (at least some of the stars) hit the red carpet outside the Arts Theatre in London for the press night of American Idiot – the new Green Day-inspired Broadway musical, which has begun its run in the UK.

The show tells the story of three boyhood friends struggling to find meaning in the post-9/11 era. For its London run it will star former X Factor contestant Amelia Lily.

Let’s have a look at which celebs turned up to support the show on the press night.

Pop Idol runner-up and all-round ridiculously dressed man Gareth Gates was there.

Gareth Gates
(Ian West/PA)

As was eternally smiley X Factor winner Joe McElderry.

Joe McElderry
(Ian West/PA)

(Whatever happened to that Olly Murs guy he beat into second place?)

X Factor semi-finalist Diana Vickers also walked the crimson carpet.

Diana Vickers
(Ian West/PA)

Richard Fleeshman (once off of Corrie, now off of Richard Fleeshman) turned up to say hello.

Richard Fleeshman
(Ian West/PA)

And singer-songwriter Denise Pearson. She turned up.

Denise Pearson
(Ian West/PA)

Remember R&B group Five Star?

Matt Willis – once of Busted and now of the suspiciously similarly named McBusted – was there.

Matt Willis
(Ian West/PA)

As was his wife and general presenting goddess Emma Willis.

Emma Willis
(Ian West/PA)

And here they are together… awww.

Matt and Emma Willis
(Ian West/PA)

Oh, and Brooke Kinsella turned up with this guy holding some bags.

Brooke Kinsella
(Ian West/PA)

American Idiot will run until September 27 at the Arts Theatre, London.