Rock Band

As is the case with all "Big In..." achievements, this one requires playing in Band World Tour, so you'll need to find a (local) buddy to play with, or resort to vox (vocals & guitar by yourself).

And as well, as is always the case with the "Big In..." achievements, number of stars doesn't really matter, you only need complete each gig in every venue.

I've heard that your band's hometown can affect some of the specific gigs, but when I played San Francisco consisted of 3 venues, with gigs listed below. All but one could be played on easy, and that one other (Barroom Brawlers) required medium difficulty or better.

Alice's Free Love Cafe
* Say It Ain't So
* In Bloom
* I Think I'm Paranoid
* 2-Song Make a Setlist
* 2-Song Mystery Setlist

The Quarter Hole
* Mississippi Queen
* Battle of the Vans - 2 song set:
--- 1 random song
--- Creep
* Crowd Pleasers - 3 song set:
--- Main Offender
--- Suffragette City
--- Wanted Dead or Alive
* 2-Song Make a Setlist

Bay City Theater
* All Town Songs - 5 song set:
--- Say It Ain't So
--- In Bloom
--- I think I'm Paranoid
--- Mississippi Queen
--- Run to the Hills
* Run To The Hills
* 3-Song Mystery Setlist
* Barroom Brawlers*** - 8 song set:
--- Gimme Shelter
--- Tom Sawyer
--- Paranoid
--- Mississippi Queen
--- Train Kept A Rollin'
--- Ballroom Blitz
--- Run To the Hills
--- Green Grass and High Tides
* Classic Rock Marathon - 4 song set:
--- Highway Star
--- (Don't Fear) The Reaper
--- Gimme Shelter
--- Won't Get Fooled Again

*** - requires all players be on medium or better difficulty

By far the most difficult gig is the Barroom Brawlers gig, as A) it's the longest, B) is the only gig which requires medium or better, and C) consists of a couple of the hardest songs in the game. If you have a buddy medium shouldn't pose any problems, but vox-ing by yourself can be tricky on a couple of these songs.