Pikachuusb
CAGiversary!
The left trigger? Wow I had no idea of that. My friends in NY and I were trying to play and we couldnt figure out why they couldnt hear me sing. Thanks for the info 
The following content was provided by the publisher.
AC/DC LIVE: Rock Band Track Pack is a fully-featured, standalone extension to the multi-million unit selling, genredefining, cultural phenomenons Rock Band and Rock Band 2, the ultimate social music game experiences. AC/DC Live lets you and your friends relive AC/DC's epic 1991 live performance at Donington, UK, through the eyes of Brian Johnson, Angus Young, Malcolm Young, Cliff Williams, and Chris Slade.
AC/DC COMES EXCLUSIVELY TO ROCK BAND!
Harmonix, developers of the blockbuster Guitar Hero and Rock Band franchises, are delivering AC/DC LIVE, a continuation of the Rock Band platform that lets audiences of all ages interact with music in an all-new way - collaboratively, competitively, or in single-player - to experience the majestic power of AC/DC. Features Include :
Play your favorite hard-rockin' classics, or jump right in and conquer the entire 18-song set! - All of your favorite modes return - solo and band tours, tug-of-war, score duel, and even practice mode.
Rock Band's trademark guitar, bass, drums, and vocals put you right onstage where the action is! - You can use your Rock Band or Rock Band 2 peripherals to create the ultimate music game experience - you can tap out guitar solos with the 2nd set of frets at the top of your guitar neck, freeform drum fill your way through drumming sections, or use freestyle vocals to express yourself while belting out AC/DC classics.
Go Beyond the Disc! - The Xbox 360 and PS3 versions ship with a code on the back of the game manual that lets you import all of the songs into the Rock Band or Rock Band 2 game environment (Internet connection required).
AC/DC LIVE replicates AC/DC's track list from their landmark gig at Donington:
"Thunderstruck"
"Shoot to Thrill"
"Back in Black"
"Hell Ain't a Bad Place to Be"
"Heatseeker"
"Fire Your Guns"
"Jailbreak"
"The Jack"
"Dirty Deeds Done Dirt Cheap"
"Moneytalks"
"Hells Bells"
"High Voltage"
"Whole Lotta Rosie"
"You Shook Me All Night Long"
"T.N.T."
"Let There Be Rock"
"Highway To Hell"
"For Those About to Rock (We Salute You)"