With three nominations each, My Morning Jacket, moe., Benevento/Russo Duo, John Medeski, Mike Gordon and the North Mississippi Allstars lead the field for the sixth Jammy Awards.

With three nominations each, My Morning Jacket, moe., Benevento/Russo Duo, John Medeski, Mike Gordon and the North Mississippi Allstars lead the field for the sixth Jammy Awards, which will be handed out April 20 at New York's Theater at Madison Square Garden.

My Morning Jacket is up for studio album of the year for "Z" (ATO), song of the year for "Off the Record" and live performance of the year for a Nov. 11, 2005, show in San Francisco. moe. scored nominations for archival release of the year ("Warts and All, Vol. 4"), show of the year (Feb. 10, 2005, in New York) and tour of the year, while Benevento/Russo Duo will vie for studio album ("Best Reason To Buy the Sun"), song ("Becky") and tour of the year with Gordon.

Widespread Panic, Ryan Adams, Grace Potter, and the Allman Brothers Band each are nominated in two categories.

Among the acts confirmed to perform at the ceremony are moe., Little Feat, Bela Fleck & the Flecktones, Joe Satriani, Blues Traveler, Peter Frampton, Richie Havens, Baaba Maal, McCoy Tyner, Savion Glover, Mad Professor, Angelique Kidjo, Bettye Lavette, Guster, Martin Sexton and DJ Logic.

The late Frank Zappa will be honored with a Lifetime Achievement Award and will be the subject of a tribute by his son Dweezil, Napoleon Murphy Brock and other guests to be announced.

As previously reported, the Jammys will serve as the kick-off of the first Green Apple Music and Arts Festival, which will feature shows in venues throughout New York.

For a full list of nominees, visit Jammys.com.