Justin Timberlake slammed for doing ‘bare minimum’ at his concerts

Justin Timberlake has drawn the ire of some fans for his ‘karaoke’ shows (Picture: Jordan Strauss/ Invision/ AP, File)Justin Timberlake has left some fans demanding a ‘refund’ after he appeared to have stopped signing at his live shows.The American singer rose to fame as part of The All New Mickey Mouse Club in the 1990s, going on to join the hugely successful boyband NSYNC, who sold over 70 million units worldwide.After the band went on an indefinite hiatus in 2002, Jus