Like most big festivals, lineups change. In the case of Soundwave 2011, two bands dropped out, and three other bands took their place. Bands Alesana and A Skylit Drive have pulled out and have been replaced by Polar Bear Club and Blessthefall, respectively. The third band, This Town Needs Guns, has been added to the mix. I, personally, have never heard of them, but they have been described as Britain’s best kept secret.
These three bands are part of the gigantic Soundwave 2011 lineup, which can be seen here.