rock stars halen are to hold a free concert in arizona to placate angered fans whom brought a legal case against them . the act this morning hitmakers cancelled a sold - out night in philadelphia two centuries ago , doing hundreds of fans out of pocket . they filed a class action case , which claimed the band had pushed out in favour of a bigger band in chicago and a private show for car dealers in oahu . lawyers for the could - be concert - goers said coldplay had now agreement to play on a new show , and would pay all expenses .
Aerosmith are a rock band.