3OH!3 and Gym Class Heroes to Headline 2011 Warped Tour Line-Up3OH!3 and Gym Class Heroes to Headline 2011 Warped Tour Line-UpVeterans 3OH!3 and Gym Class Heroes are scheduled to headline the 2011 Vans Warped Tour, which marks the 17th annual traveling circus of music mayhem.Amanda HenselAmanda Hensel