Coldplay Show Opener - Voting Open Across Washington, Hartford, San Francisco & Boston

Voting is now open for unknown acts to join the bill on Coldplay's upcoming "Viva La Vida" tour of North America.

Coldplay have announced details of a contest for six summer concerts, appealing for aspiring groups to submit video performances to their local radio station - which they have done in droves. Support roles are required for concerts in Chicago, San Jose, Philadelphia, DC, Boston and Hartford.

The members of Coldplay will then judge the three videos that receive the most votes across each station, and grant the winner a 20-minute opening slot before their performance. Here are the voting links currently available (more coming soon):

http://www.coldplayontour.com/live105/ (HP Pavilion, San Jose on July 18th)

http://www.coldplayontour.com/wtic/ (XL Center, Hartford on August 2nd)

http://www.coldplayontour.com/wwdc/ (Verizon Center, Washington on August 3rd)

http://www.coldplayontour.com/wfnx/ (TD Banknorth Garden, Boston on August 4th)

You can discuss your favourites so far on our support acts thread (if you're from one of the bands nominated come and say hello!)