Following a successful UK tour, Denise Van Outen has opened her one-woman show Some Girl I Used to Know at the Arts Theatre until 13 September.

Last night she celebrated her return to the West End with a special gala performance attended by guests including Kate Thornton, Ben Forster, Gok Wan and Dani Harmer. Below is a few of our favourite pics from the night, scroll down for Dan Wooller's full gallery.

JCS star Ben Forster turns water into bubbly for Kate Thornton

Dani Harmer once played a famous "Girl we used to know".... (sorry!)

Van Outen poses with fashion star Gok Wan and Total Wipeout presenter Amanda Byram