Look for a Semisonic reunion on Sept. 20 at the River Rocks festival in St. Paul. ... Ray LaMontagne sings Oct. 4 at the State Theatre. ... Panic at the Disco, Dashboard Confessional and Plain White T's team up Oct. 21 at Target Center. ... Cheech and Chong will light up the Orpheum Theatre on Oct. 25. ... AC/DC plans to announce a world tour, starting in October in Pennsylvania. ... Coming to First Avenue: the Fratellis Sept. 11, Neko Case Sept. 18 and Broken Social Scene Oct. 13. ... Alicia Keys and Jack White will record the first-ever duet theme song to a new James Bond movie, for "Quantum of Solace." ... Bob Dylan's "Tell Tale Signs," a three-disc set of rarities, is due Oct. 7. The eighth installment in his "Bootleg Series," the package includes outtakes from "Time Out of Mind" and "Oh Mercy," live tracks from Bonnaroo and tunes from several soundtracks. ... Young Jeezy's "The Recession" arrives on Sept. 2. ... David Byrne and Brian Eno's first collaboration in 27 years, "Everything That Happens Will Happen Today," will be released online on Aug. 18. ... Ne-Yo, Chris Brown and Julianne Hough will offer remixes of classic Wrigley's gum jingles. ... Fergie will join the cast of the musical film "Nine" with Daniel Day-Lewis and Nicole Kidman. ... Jolie Holland's "The Living and the Dead," out Oct. 7, features M. Ward and Marc Ribot. ... Pete Seeger's "At 89" is set for Sept. 30.

JON BREAM