On Universal Studios Orlando's FB page the just announced the Mardi Gras lineup for 2011.
Universal Orlando Resort | Facebook

2/12 Frankie Valli & The Four Seasons
2/19 The B-52s
2/20 KC & The Sunshine Band
2/26 Pitbull
3/5 Lynyrd Skynyrd
3/12 Foreigner
3/18 Neon Trees
3/19 Thirty Seconds To Mars
3/25 OneRepublic
3/26 Blake Shelton
4/1 Sean Kingston
4/2 Ne-Yo
4/9 Lifehouse
4/16 The Beach Boys
4/23 To Be Announced

This is going to be EPIC. I love Mardi Gras at Universal Orlando, and it is one of the main reasons to have an Annual Pass to Universal Studios.