If a thread like this has already been posted recently then I'm sorry. Didnt do it on purpose.
Anyway, to name a few:
Stereo Skyline, All Time Low, Hey Monday, Paramore, The Friday Night Boys, Cash Cash, We the Kings, The Maine, Mayday Parade, Forever the Sickest Kids.
Are any of these ^ not considered Alternative? Any ones you think i might like? What are your favs?
