Alexa Chung and Pixie Geldof cemented their reputations as cool kids when they attended a live gig by indie band The Klaxons on Wednesday night. The pair were seen leaving the concert at Oslo nightclub in London's trendy Hackney, before heading to a party with actress Keira Knightly and friends until 4am The rock 'n' roll night comes just one day after Keira was spotted supporting her husband, James Righton, at his band's performance in Birmingham on Tuesday. The band had been starting a UK tour at the Hare & Hounds in Kings Heath when Keira joined the audience to cheer on her keyboard player husband. Wearing navy velvet and white twill dress by Carven, Alexa was her typically stylish self. With her bobbed hair parted to the side, she accessorised with a pair of flat shoes - something which is definitely on trend. Clearly excited about her night, she took to Twitter to say: 'Eat, pray, rave. Daily Mail