Old Crow Medicine Show, Dr. John and the Tedeschi Trucks Band are among the new concerts added to the 2013 Savannah Music Festival lineup.

The Wailers (the remnants of the great Bob Marley's original band, and still one of Jamaica's coolest reggae exports) and indie rockers Sea Wolf round out the last-minute additions, announced Thursday by SMF chairman Rob Gibson.

The details:

Guitar hero Derek Trucks and his wife, singer/songwriter Susan Tedeschi, bring their lightning-hot blues/rock outfit to the Johnny Mercer Theatre April 4. The Tedeschi Trucks Band played its first-ever live show at the Savannah Music Festival in 2010.

Old Crow Medicine Show, appearing March 22 at the Johnny Mercer Theatre, is perhaps the premiere old-timey string band in the America. Combining elements of bluegrass, country, folk, jazz and other strains of acoustic Americana, Old Crow frequently performs on NPR, A Prairie Home Companion, and the Grand Ole Opry stage.

Dr. John, aka Mac Rebennack, has been at the forefront of New Orleans piano boogie and jazz since the early 1970s. He is known not only for his distinctive growl of a voice and the classic songs "Right Place, Wrong Time" and Such a Night," but for collaborations with everyone from Allen Toussaint to Dan Auerbach of the Black Keys. He'll play March 27 at the Lucas Theatre.

Bassist Anton "Family Man" Barrett is the sole living member of the Wailers when Bob Marley and Junior Marvin (not to mention Peter Tosh and Bunny Livingston) were leading the charge. Still, it's the Wailers, I-Threes and all. Yah mon! March 29, Trustees Theater.

Singer/songwriter Alex Brown Church is at the forefront of the Dangerbird Records Band Sea Wolf, which provide the song "The Violet Hour" for one of the Twilight movies. Ships of the Sea North Garden March 29.

Tickets for the new shows go on sale at 10 a.m. Friday, Feb. 8 at savannahmusicfestival.org.