POP/ROCK After earning a star on the wall and its first two-night sellout last year, Trampled by Turtles returns to First Ave for a true winter-warmer weekend. The alt-twangy, barnstorming string quintet from Duluth continues to make inroads in the traditional bluegrass/folk field, including a recent appearance on the radio show "Mountain Stage" and an inaugural trip to the prestigious Telluride Bluegrass Festival on tap this summer. They're gaining ground with local hipsters, too: Current 89.3 listeners ranked their "Palomino" album high on the Top 89 of 2010 charts. Caroline Smith and Boys N' the Barrels open the first night. Erik Koskinen and Dave Carroll's TBT offshoot Two Many Banjos play the second show. (9 p.m. Fri., 7 p.m. Sat., First Avenue. Sold out.) (C.R.)
Known for his rich baritone and emotional lyrics, well-traveled singer/songwriter John Gorka was born in New Jersey but has called Washington County home for several years. At a benefit for the Marine Volunteer Fire and Rescue Unit, expect selections from Gorka's splendid 2010 album "Red Horse," a trio project with Eliza Gilkyson and Lucy Kaplansky. (7 p.m. Sat. Marine Village Hall, 121 Judd St., Marine on St. Croix, $20, 612-810-0557.) (J.B.)
While other '80s hair bands still promise to set the stage on fire -- except Great White, of course -- Tesla can boast of doing so in the studio. Their recording facility in Sacramento, Calif., sustained fire damage just before the holidays. The quintet continues to make music there reminiscent of its Stonesy hits "Drugstore Cowboy" and "Little Suzi," including the new "Forever More" album. (8 p.m. Fri., Treasure Island Casino, Red Wing, Minn. Sold out.) (C.R.)
Best known from a Target commercial featuring their 2004 song "Say Something New," Swedish indie-pop band the Concretes finally have something new to say. Their first new album in three years, "WYWH," is their second without singer Victoria Bergsman, who left to form Taken for Trees and took much of the band's buzz with them. However, there's a lot of attention being paid to opening band Hooray for Earth, a rhythmically fragmented, wiry synth-pop band from New York earning comparisons to Yeasayer and other hot names in the blogosphere. (10 p.m. Fri., Triple Rock. 18 & older. $14.) (C.R.)
Johnny Cash might be considered a country legend, but Cash Only: A Tribute to the Man in Black always spotlights his status as a bona-fide rock star. In its 11th year, the event returns with a familiar cast of players, including honky-tonk purists Trailer Trash and their one-night-only Cash Choir, plus the Cabooze's hard-boogying regulars the White Iron Band, reunited garage-rockers Ol' Yeller and southern Minnesota farm boys Six Mile Grove. Even local Nashville vet Sherwin Linton, who once literally stood in Cash's boots, puts on a pretty rocking set for this thing. (9 p.m. Sat., Cabooze. 18 & older. $12-$15.) (C.R.)
Grace Potter has gone from being a granola jammer to a glamorous VH1 Diva. She's always had a big Raitt/Joplin voice, but she and her Vermont band the Nocturnals rock with more precision and force on their self-titled fourth CD, produced by hitmaker Mark Batson. Chamberlin opens. Read an interview with Potter in Sunday's Variety. (8 p.m. Sun., Varsity Theater, $18.50-$21.50.) (J.B.)
Always versatile and chameleonic, St. Louis Park native Peter Himmelman goes style-hopping on his 19th recording, "The Mystery and the Hum," a made-in-Minneapolis disc that was self-released last fall. He does a little rap-rock, rockabilly and twangy Americana. He rocks like Elvis Costello (long his model) and occasionally sounds original, most notably on the acoustic rocker "Ever So Slightly" and the melancholic piano ballad "Trembling in the Beams." (7 p.m. Sun., Guthrie Theater's Dowling Studio, $29.) (J.B.)
Well, Liz Phair is clearly still sucking wind. The onetime queen of alt-rock went from overt attempts at pop stardom in the mid-'00s to revisiting her overheralded "Exile in Guyville" on tour in 2008, and now she has a bizarre new album, "Funstyle" -- which seems to be making fun of pop stardom and the music business behind it. Phair aims to be funny with tracks such as "Bollywood" (a possible slam on M.I.A.) and she slaps on a comically diverse array of musical styles, little of which recalls her heyday material or stands up to repeated listening. Still, she's admirably taking a different path. Sort of like how running your car into a tree is a different path. (8 p.m. Thu., Fine Line. 18 & older. $20.) (C.R.)