It's not just London's main shopping streets that get a big Christmas lights switch-on these days - Stella McCartney has got in on the act, too with a star-studded festive launch for her fashion boutique! The Mighty Boosh duo even dressed up in frocks to celebrate - see all the pics…

London was the place to be this weekend - Girls Aloud singers Sarah Harding and Kimberley Walsh tempted out the stars for their big birthday bash at Kanaloa nightclub, and Cheryl Cole brought husband Ashley along after her X Factor duties. Boyzone and Sugababes were also out and about in the West End, Jedward packed their bages and Taylor Swift was spotted hitting the capital's shops.

The stars came out for the Victoria's Secret Fashion Show on Thursday night and the audience was full of very happy-looking men... maybe it had something to do with the number of the supermodels seen strutting about in their underwear.

Move over Twilight... the original teen hunk is back in town to regain his crown. The screaming girls came out for Zac Efron at the premiere of his new movie, Me and Orson Welles, but the noise was considerably more hushed than usual - maybe the rest of his dedicated fans are too busy following Robert Pattinson's every move these days.

Sometimes the stars have no choice but to dive into the less glamorous world of television in a bid to plug their latest work. Here we take a look at the famous faces doing the rounds of the TV studios on Tuesday...

Rihanna wowed the crowds in London as she performed a 'secret' gig at the Brixton Academy to promote her new album, Rated R. Competition winners and VIPs (including Adele, Keisha Buchanan, Tinchy Stryder and Emma Bunton) were entertained by all the hits, two costume changes and a surprise appearance by her mentor, rapper Jay-Z. Rihanna later headed up the guest list at her star-studded aftershow party...

It was a suitably mixed bag of stars showing their face at the Variety Club Showbiz Awards in London, which honours the best in showbusiness. Kelly Brook, Pixie Lott and Alesha Dixon rubbed shoulders with the likes of Alan Carr and Sir Ian McKellen at the event - see all the pics below.

It was a big night for music fans as Take That reunited on stage in front of a star-studded audience for a Children In Need concert at London's Royal Albert Hall...

The girls - and an occasional boy - were out in force for the Cosmopolitan Ultimate Women of the Year awards on Wednesday night. Dannii Minogue, Kimberley Walsh, Alesha Dixon, Freddie Flintoff and Holly Willoughby were among the stars on the pink carpet - see who else was there in our photo gallery.

Tuesday night saw the stars heading for London's Leicester Square for the premiere of Sir Michael Caine's eagerly-awaited new revenge movie, Harry Brown. New heavyweight champion of the world David Haye was a welcome addition to the red carpet, as were Bond girl Gemma Arderton and Strictly dancer Brendan Cole. All the usual soap stars and TV personalities were there too. See all the pics from the night in our showbiz gallery.

It's nice to see the stars relaxing - so here's a selection of famous faces out and about on Monday...

They might look good gracing the red carpet, but most rock stars are in their element doing what they do best - playing live for their adoring legions of fans...

Germany rocked the planet last night with the annual MTV European Music Awards at the O2 World Arena in Berlin...