From HMXHenry on rockband.com:
 

Hey gang,

Here's the DLC coming at you next week! It's a healthy does of reggae, long over due in Rock Band, courtesy of one of the genre's most beloved icons. We'll be seeing Get Up, Stand Up on disc for RB3, but to tide you over here's the rest of Bob Marley and the Wailers' epic album Legend. Enjoy!

Available on Xbox 360, Wii and PlayStation 3 system (Sept. 21):

“Is This Love” +
“No Woman No Cry” +
“Could You Be Loved”
“Three Little Birds” +
“Buffalo Soldier”
“Stir It Up”
“One Love/People Get Ready”
“I Shot the Sheriff”
“Waiting in Vain” +
“Redemption Song”
“Satisfy My Soul” +
“Exodus”
“Jamming”

(All tracks are original master recordings)

(These tracks will be available in Europe on PlayStation 3 system Sept. 22)

These tracks will be available for purchase as individual tracks, as well as “Legend (Album)” on Xbox 360 and PlayStation 3 system and as individual tracks on Wii. Tracks marked with “+” will also be available for download in the family-friendly LEGO® Rock Band Music Store.

Price:
$1.99 USD, £.99 UK, €1.49 EU (160 Microsoft Points) per song
$2.00 USD (200 Wii Points™) per song
$19.99, £9.99 UK, €14.99 EU (1600 Microsoft Points for Xbox 360) for Legend (Album)

Rad, is the word. That I'm sayin', is the word.
 
So many great songs. I <3 Bob Marley.

Love it, I may actually pull out one of my mics for this album.
 
Also, I was lead to believe that Bird was, in fact, the word.

" Love it, I may actually pull out one of my mics for this album.  Also, I was lead to believe that Bird was, in fact, the word. "