Bruno Mars puts on the show of his life, Britney and Gaga hang out Vegas-style and Beyonce creates a moment with Jay-Z in the best pictures of the week so far.
The star channels her inner Madonna with her latest shoot. Picture: Twitter
Either Rita's really happy with Calvin's choice of salad or she just can't keep her hands off him. Picture: Splash
The boyband star looks rather like McBusted's Matt Willis with his head shave don't you think? Picture: Twitter
One question thogh, who has the best suit? Picture: Instagram
She wrote: "Just trying to be like George Washington." Not bad guys, not bad! Picture: Instagarm
The singer has been posting teaser images from rehearsals for her upcoming 'Bangerz' world tour. Picture Twitter
Get a bucket of cold water to hand for this steamy shot. Picture: Instagram
The star paid a visit to see his favourite team at training this week. Picture: Twitter
The Saturdays singer gets all her followers hungry with this snap. Picture: Instagram
The singer was seen grabbing an early morning lesson in LA as she aims to follow in the footsteps of Liam Payne and Adele by getting her license. Picture: Splash
The stars were among some high-profile guests at the Ciroc party at Vanquish Lounge. Picture: Getty
The star was seen with girlfriend Helen Lasichanh leaving the popular Nobu restaurant in London.
Hopefully she didn't skip past 'Drunk In Love' #Awkward Picture: beyonce.com
The 'Wrecking Ball' star wore a blonde wig and covered up her modesty with a duvet for the shoot. Picture: Mert Alas and Marcus Piggott/ W Magazine
The star also spoke about her fans and offered some dating advice. Picture: Patrick Demarchelier/Glamour.
The singer has been tweeting about how much she can't wait to just hit the road, and looks set to steal a lot of headlines with the tour. Picture: Twitter
The star was on stage at the Ursynow Arena. Picture: WENN
The 'I Knew You Were Trouble' star opens up all about her image and said she has no interesting in stripping naked for any photoshoots. Picture: Patrick Demarchelier/Glamour.
The star enlists the help of some animal friends during her latest light-hearted promo.
The star was back on her two feet following an early morning driving lesson. Picture: Splash
The One Direction star shows off his love of Lady Gaga's seashell bikini during his break in the sun. Picture: Insagram
The 'Call Me Maybe' star has made the shift to musical theatre ready for Rodgers and Hammerstein's Cinderella at NY's Broadway Theatre.
The third night of the US star's UK tour saw her joined by The Script frontman for a rendition of 'Breakeven'.
The girls continue their promotional tour of the US during the week their new album is dominating the charts. Picture: Splash
Well, the paps wouldn't be able to snap her that's for sure! Picture: Instagram
The singer was in attendance for the Centrepoint Ultimate Pub Quiz at Village Underground, London.
The 'Treasure' star put on a show to remember for the halftime performance at this year's NFL sporting event.
The 'Applause' singer showed her support to Britney by hanging out backstage at the 'Piece Of Me' live show. Picture: littlemonsters.com
The Saturdays stars looked fab on the red carpet for the event in London.
The former X Factor champions performed at The Hard Rock Cafe in Times Square.
The singer was unveiled as the front of Madonna's line last year.
All the singer was missing was the stripes to make a truly patriotic outfit. Picture: Splash
The US singer continues to wow during her shows at the Planet Hollywood resort in Sin City. Picture: Splash
The singer was in high spirits as he headed to Capital to talk about new music.
The 'Bang Bang' rapper gives his verdict on the big match. Picture: Twitter
Taylor Swift was joined on stage by Ed Sheeran as she kicked off the European leg of her blockbuster The RED Tour with the first of five sold-out shows at London's O2 Arena
The NFL star decided to take in some NBA following his team's Super Bowl triumph and bumped into the power couple courtside. Queen Bey can be seen rocking a Karl Lagerfield tartan jacket - taken from the designer's Punk capsule collection.
2012's X Factor champion chills out by the side of the stage before a sold-out show at The Olympia Theatre. Picture: WENN
Looks like she might have got the part! Picture: Flynet
The Geordie lass looked like Bruno Mars' opening Super Bowl performance got her in the spirit during new album sessions.
Bad weather or not, this singer was going to spend time with his Beliebers. Picture: Splash
The 'Loving You Is Easy' singer joined his bandmates for the sunny getaway this week. Picture: Splash
The 'Best Song Ever' singer proudly help up his driving pass certificate after passing at the weekend. Picture: www.intensivecourses.co.uk
The pair gave a surprise performance of 'Drunk In Love' for Jay-Z's show in New York City. Picture: Kevin Mazur/Getty/beyonce.com.
The '99 Problems' rapper was picturing lifting Beyonce up into the air like his adorable picture with two year-old Blue from a few weeks ago. Picture: Instagram
The pair performed 'Money On My Mind' during her second London date on the 'Red' UK tour.
The 'Carry You' star was joined by Josh Cuthbert and Jaymi Hensley for their holiday.
The '22' star was caught off-guard when a fan rushed the stage to hand her something during a show in London. Picture: Flynet
The 'Wings' four-piece stopped by Max's show to reveal all about touring with Demi Lovato and their new single 'Word Up'. Picture: Twitter
The 'R.I.P.' singer attended the MIDEM 2014 in Cannes, France this week after a brief return to the UK.
The 'XO' singer shared a snap of herself superimposed onto the pitch. Picture: Instagram
The 'Royals' star was back home this week after her huge success at the Grammy Awards 2014.
Having flown to three different states on a big trip around the US, the couple get ready for some shut-eye. Picture: Instagram