Justin Bieber could be good for your CAREER. Pop music speeds up work, study ...

Daily MailJustin Bieber could be good for your CAREER. Pop music speeds up work, study ...Daily MailIf you're doing your tax returns, then classical music such as Mozart (left) is the most effective as it improves accuracy. Listening to Justin Bieber (right) could improve your speed, with 58 per cent of participants completing data entry tasks faster ...