Newly reunited rockers System Of A Down are giving fans the chance to decide which songs the band should play when they return to the stage this summer (11).
The group, fronted by Serj Tankian, announced an indefinite hiatus in 2006 but have reformed to play a number of 2011 concerts.
Devotees can now shape the shows by helping the musicians pick the setlist - and participants will have the opportunity to win tickets to the gig of their choice.
A post on the band's official website reads, "We want to know which songs you most want to hear on the road this summer.
As a reward for telling us your top six setlist requests, one winner from each tour city will win a pair of tickets to his/her local show.
They will also win a setlist from the show they attended, signed by all of us."
The concerts kick off in Canada on 10 May (11).