^ MAMA = Mnet Asian Music Awards. It used to be called Mnet KM Music Festival (MKMF) until 2009.
I wouldn't say the MAMA is prestigious, it's kinda been the joke of the kpop fandom for the last couple of years
The girls didn't attend it in 2009 & 2010 because SM and Mnet had some disputes. SM accused them of being unfair to their artists and boycotted them until early this year. Personally I was never fond of Mnet in general so the MAMAs don't matter to me, plus it's just a huge popularity contest and fans tend to take the voting a little too seriously. You can read more about the SM vs Mnet fight
here
The Golden Disk awards are what really matter, and they won that last year. (despite the fact that Super Junior fans say they didn't win it fairly
)
Boomerang is awesome omg
!! It's weird that it leaked now though, is this confirmed to be the title song for the repackage ?