Usher + Rita Ora

NB: This show has been rescheduled to later in 2013 due to Usher's appearance on 'The Voice'. A new date hasn't been announced yet, but check for updates soon. Schmoove and libidinous R&B superstar – and winner of seven Grammys! – Usher Terry Raymond IV performs chiefly from his current (seventh) album, 'Looking 4 Myself'. Bleach-blonde, 21-year-old London R&B-pop starlet sings from her debut album, 'Ora' in the opening slot. Having guest judged on the 'X Factor' last year, we're guessing she'll have no problem commanding this arena's crowd.