If you're like, "Who the eff is Hanson?", I have one word for you, or non-word rather: "MmmBop".
That's the title of the song by the bubbly blonde trio of brothers that blew teenaged girls minds in 1996.
By 2011, I'm sure the world looked a little different for Hanson, as I'm sure it does for all aging boy bands. So they decided to mix things up, get people talking again. Hanson announced they were putting out an album of Slipknot covers.