Pet Shop Boys, KT Tunstall, Russell Watson and Passenger have pledged to play gigs for ‘Passport: Back to Our Roots’, the campaign to raise money for grassroots music venues at risk of closure.Two further artists will be announced on BBC Radio 6 Music during the station’s ‘State Of Independents Day’ on Thursday September 10th.

Pet Shop Boys will be performing at Camden’s Electric Ballroom, Russell Watson at Manchester’s Stoller Hall,...