(via Facebook)On Tuesday, Aussie four-piece 5 Seconds of Summer dropped a very big announcement on their Facebook fans: They'll be the supporting act on One Direction's 2013 world tour.It's a pretty huge feat for a group that only came together a little over a year ago, although dedicated One Directioners have probably seen this coming for a while now. The band saw its popularity significantly boosted last year when 1D's Louis Tomlinson tweeted a link to one of their videos and proclaimed...Read Full Story