The Sexy Back singer was due to play concerts in Sacramento and San Jose earlier this month as part of his FutureSex/LoveShow World Tour, but he cancelled them because of a 'vocal strain'.
It was assumed that the drain on the pop superstar had been caused by his impressive performance at the MTV Video Music Awards, but some claimed that he had simply been partying too hard.
Eventually Justin came clean at the rescheduled show in San Jose on Sunday September 23rd.
The 26-year-old told the audience: 'Certain bloggers said I cancelled because I was hungover and they were right… I was.'
