Over jambalaya, cocktails and music, producers of the New Orleans Jazz and Heritage Festival unveiled the full schedule and official posters for this year’s fest, which is a month away.

“This is my favorite time of year,” said Philip Frazier, leader and tuba player of the New Orleans-based Rebirth Brass Band, which performed in an outdoor courtyard Tuesday at the New Orleans Fair Grounds, the horse racing track where the festival is held.

Frazier and Ferriday, La., native Jerry Lee Lewis are the subjects of this year’s two official festival posters, which were created by New Orleans artists and boast bold shades of blue, yellow, green, purple and orange.

The New Orleans Jazz and Heritage poster shows Lewis performing standing up, slightly hunched over his piano and singing into a microphone. Frazier, the subject of the Congo Square poster that annually commemorates the state’s African-Caribbean culture, is playing the tuba.

Lewis and Rebirth are set to perform separately the first weekend of the festival, which is April 27-29. Dr. John, Van Morrison, Lucinda Williams and Percy Sledge are among the big names performing on April 27. Rebirth, Rod Stewart, Norah Jones and Ludacris perform on April 28, and Lewis, Irma Thomas, Brad Paisley, Bonnie Rait and Jill Scott are among those performing on April 29.

Opening the second weekend on May 4 are Better Than Ezra, ZZ Top, George Benson and Counting Crows. Cowboy Mouth, John Mayer, John Legend and the Allman Brothers Band perform on May 5. Harry Connick, Jr., Steely Dan, New Edition and Allen Toussaint will close the festival on May 6.

The blues tent is making its first post-Katrina comeback, along with the kids’ tent and a number of vendors, said festival producer Quint Davis. Almost all the pre-Katrina food vendors, who serve such items as crawfish bread, catfish meuniere, red beans and rice, fried alligator and shrimp etouffee, are back, Davis said.

Like last year, more than 80 percent of the performers are from Louisiana. Among New Orleans’ own who are scheduled to perform: Kermit Ruffins, Troy “Trombone Shorty” Andrews, Irvin Mayfield, Henry Butler, Clarence “Frogman” Henry, Ellis Marsalis, Rolan Guerin and Donald Harrison.

Last year, New Orleans native Fats Domino, whose home in the Lower Ninth Ward was flooded by Hurricane Katrina, was the subject of the official Jazz Fest poster, which sold out the first day of the festival.

Mardi Gras Indian chief Joseph Pierre “Monk” Boudreaux of the Golden Eagles Tribe was the subject of the Congo Square poster.