Jack Johnson and Dave Matthews have been announced to headline the fifth annual Kokua Festival in Hawaii.
The pair will perform at the Waikiki Shell in Honolulu on the island of Oahu, on April 19 and 20.
It will be the first show in the state for Dave Matthews, who will perform an acoustic set with Tim Reynolds.
Other acts on the bill are local artists Paula Fuga, Go Jimmy Go and Hawaiian-born Mason Jennings.
Proceeds from the event go to the Kokua Hawaii Foundation, a non-profit organization founded by Jack and Kim Johnson to support environmental education programs in the schools and communities of Hawaii.