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Rihanna returns to The X Factor, Robbie Williams teams up with Olly Murs and stars ranging from Taylor Swift to Example arrive down under in this week's best pictures.
The 'As Long As You Love Me' singer showed off his toned physique while performing live at Madison Square Garden in New York City this week. Picture: Landmark
The musical couple took in the New York Knicks against Brooklyn Nets basketball game at the Barclays Center in Brooklyn, New York.
The 'We Found Love' star made her latest appearance on The X Factor UK this month in a performance which culminated in the Bajan singer being drenched in water. Picture: Rex Features
The 'Live While We're Young' singers landed at JFK airport this week after scoring their second US number one album of 2012 last week following their latest album release. Picture: Splash
The 'Boyfriend' star's 'Believe' world tour arrived in the Big Apple this week for several sold out performances supported by The Wanted and Carly Rae Jepsen.
The 'Live While We're Young' singers proudly displayed their respective toy dolls at a Hasbro launch event for the latest One Direction merchandise.
The 'Beez In The Trap' rapper was all smiles while launching her new fragrance at an event in Sydney.
The 'We Are Never Ever Getting Back Together' singer touched down in Sydney this week where she was greeted by an army of fans, fresh from releasing her new album 'Red'. Picture: Barcroft Media
The 'As Long As You Love Me' singer bought his 'Believe' world tour to the Big Apple for a huge sold-out show.
The 'Candy' singer will be supported by fellow UK star Olly Murs on his newly announced stadium tour starting in June 2013.
The 'Pound The Alarm' singer wore a colourful ensemble while attending the annual ARIA Awards 2012 at the Sydney Entertainment Centre in Australia.
The 'Marry The Night' singer brought her 'Born This Way Ball' world tour to Paraguay in South America this week for a show in the country's capital city of Asuncion. Picture: Getty
The X Factor UK judge was joined by surprise guest Robbie Williams on stage at his Royal Albert Hall gig this week to perform as part of his brand new UK tour.
The two pop stars were spotted hanging out together at the UNICEF Snowflake charity ball in New York City this week alongside a host of other big name attendees.
The 'Boyfriend' singer sang at the CFL's 100th Grey Cup Championship game in Canada in between shows on his 'Believe' world tour.
The 'Troublemaker' performed his biggest hits and several new songs for his show at the London venue, fresh from releasing new record 'Right Place Right Time'.
The 'You Need Me, I Don't Need You' singer gave a huge performance at the C-Halle in Berlin, Germany this week.
The 'Shine Ya Light' singer opted for an off the shoulder turquoise dress while walking the red carpet at the British Fashion Council Awards in London.
Fresh from releasing her new album 'Red', Taylor took to the stage backed by a troupe of dancers for the awards show in Sydney, Australia.
The 'Scream & Shout' rapper poses alongside his range of i.am+ camera accessories for the iPhone 4 and 4S in central London this week.
The 'Standing In The Dark' four-piece Lawson arrive at the Jameson Cult Film Club gala premiere of new ensemble comedy Seven Psychopaths in London this week.
The 'Wings' four-piece are gearing up for their performance at the Capital FM Jingle Bell Ball 2012 next month where they will play songs from their debut album 'DNA'. Picture: Splash
The 'Glad You Came' stars thrilled their US fans with a live show of all their biggest hits including 'I Found You' and 'Warzone'.
UK singer-songwriter Rita has been spending time out in the US in recent months but is set to perform live at the O2 Arena next month for Capital's Jingle Bell Ball 2012.
The 'Pass Out' rapper is in the process of preparing for his brand new album 'Demonstration', and stepped out in a black tuxedo for the annual theatre awards this week. Picture: PA
The' Wings' singer was spotted leaving London nightclub hotspot Whisky Mist with a mystery man this week. Picture: Goff Photos
The 'We Are Never Ever Getting Back Together' singer wore a flowing white gown at the annual awards show in Australia.
The famous Jim Henson creations at the 80th Annual Rockefeller Center christmas lights ceremony.
The 'Girl On Fire' singer's newly released fifth album boasts songwriting collaborations with the likes of Bruno Mars and Emeli Sande.
The 'Changed The Way You Kissed Me' rapper recently launched his brand new album 'The Evolution Of Man'.
The 'Let Me Love You' gave a powerful performance at the Coloneum in Cologne this week for the German version of popular talent show The X Factor.
The rock band performed songs from their newly released studio album 'Push & Shove' at the Gibson Amphitheatre in Universal City, California. Picture: Getty
The US singer-songwriter was all smiles while celebrating the worldwide release of her latest studio album.
The Voice US judge gave a crowd-pleasing performance at the annual christmas tree lighting ceremony in between his duties on the hit NBC show.
The 'It Girl' star sings at the Magical Evening Gala at Cipriani in support of the Christopher & Dana Reeve Foundation.
Ke$ha performs during the filming of the Graham Norton Show at The London Studios.