So we've had a lot of modern rock, alternative rock, hair metal, prog.
I'm thinking HMX releases some more classic rock.
And someone who'ze already on RB3.
My guess is
Beach Boys 3 pack
If we need another song to make it a 4 song day, I'm going with Southern Classic Rock like CCR, 38 Special, or Allman Bros. That Genre is pretty lacking in RB3, but pretty popular in the other RB/GH games.