Today Athens residents can purchase tickets to R.E.M.’s June 21 concert at Lakewood Amphitheatre in Atlanta as part of a special pre-sale. Tickets go on sale to the rest of the world Saturday. From 1 to 6 p.m. at the Georgia Theatre, hometown fans can buy up to four tickets for the show. Seats are a random sample from reserved sections around the venue. Some lawn seats and general admission pit seats will be available as well. This is a first-come, first-serve, cash-only sale. Lawn seats are $41. Reserved and general admission pit seats are $81.

For a supergroup, they’re pretty unassuming. On one level, Supercluster (tonight, 40 Watt) fits the bill: boasting members from some of Athens’ most well-known bands (Pylon, The Olivia Tremor Control, Casper and the Cookies), the group has name recognition in spades. Even the band name hints at celebrity status. But frontwoman Vanessa Briscoe Hay insists it’s all “tongue-in-cheek” and that the group is as down-to-earth as it gets. Full story…

Following in the tradition of such San Francisco icons as the Grateful Dead, Jefferson Airplane, Creedence Clearwater and Quicksilver Messenger Service, Bay Area rockers Tea Leaf Green (Saturday, 40 Watt) are well versed in the art of improvisation. But vocalist, keyboardist and chief songwriter Trevor Garrod says the quartet - which celebrates its 10th anniversary this year - has moved far from its jam-band roots and even farther from its noodling inception. Full story…

• 40 Watt: The New Sound of Numbers, Supercluster, A. Che Why.
• Caledonia: Dave Dondero and the Entire State of Florida, The Dumps, Diego Catalan, All the Saints.
• Farm 255: Ken Will Morton, Mos Funnel, Stegosaurus.
• Flicker: Badland Badboy, Kite to the Moon, Society’s Madness … I Am the Cure, Undercurrents of Emotion, Who the Hell is Rogerio Gutterrez?
• Georgia Theatre: Bassnectar, Eliot Lipp, Danceformers.
• Little Kings: Dave Howard, Scarlett Snow, The Sum.
• Melting Point: Baby’s Blue Swingset.
• No Where Bar: Jazzchronic.
• Tasty World: Electa Villain, Olympus Mans, Stephanie’s Id.