Controversial Irish singer Sinead O'Connor and country superstar Keith Urban will headline the East Coast Blues and Roots Music Festival at Byron Bay next year.

The Black Crowes, Buddy Guy, Wilco, Ron Sexsmith, and Don McLean are also slated to play the annual outdoor music festival, while local acts include John Butler Trio, Eskimo Joe, Gotye, Clare Bowditch, and Angus and Julia Stone.

The East Coast Blues and Roots Music Festival, which is in its 19th year, runs over the Easter long weekend from March 20 to 24.

In other tour news, Canadian singer/songwriter k.d. Lang will tour Australia next year in support of her forthcoming album, Watershed.

The tour, which takes in Melbourne, Sydney, Perth, Adelaide, Brisbane, Canberra and the Hunter Valley, will be the singer's first in Australia since 2005.

Featuring 11 new songs written and produced by Lang, Watershed was recorded in California this year and was personally delivered to local Warner Music executives in Sydney last month.

It will be released in February.

The album reportedly opens with the track I Dream Of Spring, in which Lang sings about "the streets of Melbourne".

AAP