Rodney King provides surprises to this yr's Gretna Fest poster

GRETNA, La. (WGNO) — This weekend is the thirtieth anniversary of Gretna Fest, and the poster is being unveiled. This yr’s artist is Rodney King. Child Rock, Irma Thomas, Charlie Daniels, Dr. John, Allen Touissaint, Rockin’ Dopsie, Trombone Shorty and…