London Tonight will be live on the red carpet at the European premier of Katy's Perry's new film later.
Katy Perry: Part of Me 3D is being described as "a rare glimpse into the pop sensation's life behind the cameras.....a backstage pass, front row seat and intimate look at the fun, glamorous, heartbreaking, inspiring, crazy, magical, passionate, and honest mad diary of Katy."
Join us at 6pm to see Katy chatting to our Entertainment Correspondent Lucrezia Millarini.
Award-winning musical A Chorus Line is to be revived in London's West End for the first time in almost three and a half decades.
Simon Cowell has revealed plans to honour Britain's Olympic and Paralympic heroes on the X Factor.
Hit stage show Shrek The Musical is to end its West End run early next year after nearly two years.