Jack Johnson's announcement could not have come at a better time. The 'Better Together' singer appeared at the Bonnaroo festival, in Tennessee, at the weekend. Johnson replaced British folk band Mumford And Sons on Sunday. The band had to pull out as their bassist Ted Dwane had recently undergone brain surgery to remove a blood clot. He dedicated the two hour set to the band, playing his own version of one of their hits 'The Cave'.

Johnson was praised for his last-minute performance. His 'calm and collected' attitude and his gentle humour in the face of difficulties have made him the critic's favourite.

All proceeds from the tour will go to charity, something Johnson has done for every one of his tours since 2008. The charity All at Once, set up by Johnson 5 years ago, supports projects worldwide including relief efforts for the victims of Hurricane Sandy. Other projects include supporting the efforts of 75 separate community groups hoping to find ways of living sustainably in some of the world's poorest countries.

From Here to Now to You is Johnson's sixth studio album. It is due to be released 17th September 2013 and tickets for certain tour dates are available to online.

Jack Johnson
Jack Johnson performing at 2006 Brit Awards.

Mumford and Sons
Mumford and Sons whom Johnson replaced at the Bonaroo Festival, following Ted Dwane's surgery (third from L)