Alt-J perform on stage for the Barclaycard Mercury prize albums of the year gig at LSO St Luke's in London on 24 October Photograph: Nick Pickles/Redferns via Getty ImagesBassnectar plays at the Hollywood Palladium on 18 OctoberPhotograph: Jeff Kravitz/FilmMagicCharlotte Cooper of the Subways at the O2 Academy in Leicester on 20 OctoberPhotograph: Ollie Millington/Redferns via Getty ImagesChinese artist Ai Weiwei dances to Gangnam Style with his friends in the courtyard of his studio in Beijing on 24 OctoberPhotograph: ReutersDaniel Stephens of Nero performs on stage at the O2 Academy in Leicester on 18 OctoberPhotograph: Ollie Millington/Redferns via Getty ImagesFans in Lagos hold up a photo of Nigerian music legend Fela Kuti at a show marking the end of a week-long celebration in his honour on 22 OctoberPhotograph: Akintunde Akinleye/ReutersFrank Sidoris, Slash and Todd Kerns perform at the E-Werk in Cologne on 18 OctoberPhotograph: Peter Wafzig/Redferns via Getty ImagesJason Aldean attends a press conference announcing his 2013 concert at Fenway Park in Boston on 18 OctoberPhotograph: Marc Andrew Deley/Getty ImagesJustin Bieber is lifted on to the stage at Allstate Arena in Illinois on 23 OctoberPhotograph: Daniel Boczarski/Redferns via Getty ImagesOne of 600 Rolling Stones fans at a secret gig in Paris on 25 October holds up his ticket. The band will be performing in New York and London next monthPhotograph: Dave J Hogan/Getty ImagesTaylor Swift peforms on ABC's Good Morning America show in Times Square, New York, on 23 OctoberPhotograph: Mike Coppola/Getty Images
