Alt-rockers My Morning Jacket [ tickets ] will put on a two-night prom in Athens, GA, complete with a theme ("Under the Sea"), chaperones and a dress code.

"For all of you who missed your prom back in 1956 or 1986 or 2006 for that matter, we will be hosting the 1st annual MMJ 2 night prom, March 6th and 7th, at the fabulous, prom-ready, 40 Watt Club in Athens," the band announced via its website.

"The first time we walked thru those hallowed 40 Watt doors we said to ourselves, 'this place looks perfect for a prom!' And now the dream will be a reality. The theme is a futuristic/retro under the sea vibe--costumes (tuxes, suits, robots, mermaid and lobster costumes, anything prom/ocean related) are not only encouraged-- they are MANDATORY!!! NO ONE will be admitted without proper attire!"

A footnote after the post acknowledged that concertgoers "may be admitted without proper attire."

"There will be cake, balloons, fishnets, classic cars, chaperones, spankings, and a whole lotta shakin' goin on," the band promised.

The band will also tackle a March 8 show in Asheville, NC, before heading to Sunrise, FL, for its part in the multi-day Langerado music festival. Indie rockers Follow the Train will serve up opening support for all three headlining shows.

My Morning Jacket is currently backing "Okonokos," which hit stores last September. The two-disc live set--mixed by Michael Brauer (Bob Dylan, Coldplay) and mastered by engineer Bob Ludwig--features 21 tracks. An accompanying DVD concert film of the same name, which was screened in several cities last fall, is also available from the band. Director Sam Erickson shot the film with the aid of lighting designer Marc Brickman, perhaps best known for his work with Pink Floyd.

The "Okonokos" projects follow 2005's "Z," My Morning Jacket's fourth full-length album. LiveDaily's critics named "Z" the best album of 2005.