La Roux - live:

These are sullen and internally fractured sentiments, yet they’re still set within gloriously upbeat pop tunes. Read the review

Photo: Gus Stewart/Redferns

Days after Justin Bieber issued an apology for using racist language, the pop singer faces further controversy after claims emerged that he used the N-word in a video and joked about joining the Ku Klux Klan. Full story here

Photo: Luca Teuchmann / WireImage

'Success wasn't even on my radar' - Katy B

She’s the Peckham girl who won’t dance to anyone else’s tune: interviewed back on her old manor, Katy B proves the perfect modern British pop star. Read the interview

Photograph: Katherine Rose for the Observer

Bastille: ‘We’ve had a year of proving people wrong’ – interview

Twelve months ago, his band were only given one seat at the Brits. Now, after the worldwide success of Bad Blood, Dan Smith’s band are nominated for four awards. But he makes a reluctant pop star. Read the interview

Photograph: David Levene

One to watch: Iggy Azalea

Australian rapper Iggy Azalea talks to Kate Mossman about being taken seriously and doing things the Kanye way

Gotta love British soldiers in Afghanistan doing a bit of Christmas Gangnam style…

Troops from the 4th Mechanized Brigade at Camp Bastion in Afghanistan perform their own Gangnam Style parody for charity in a video that has become an internet sensation. Named Afghan Style, the video was filmed with help from the British Forces broadcasting service over a three-month period during soldiers’ downtime

• The regiment is using the video to help raise funds for the Swaledale Mountain Rescue Team, which operates close to the troops’ UK base in Ripon, North Yorkshire. Donations can be made here

The Beatles on the road, 1964-1966

Photographer Harry Benson was granted access to the Beatles’ inner sanctum in the mid-60s. Here

John Lennon stands to answer a question at a press conference in Memphis, 1966 Photograph: Harry Benson

• The Beatles by Harry Benson is published by Taschen. To buy a copy, please click here