Wiz Khalifa: The Pittsburgh rapper who packed the State Fair grandstand with his late homie Mac Miller in 2013 is still rolling with the "Rolling Papers" theme, touring behind a sequel to his breakthrough 2011 album that rehashes the same weedy and/or womanizing themes even as he enters his 30s. He's still a rock-starry rap star on stage, though, and a worthy name to try out the newly remade Armory and its booming atmosphere for hip-hop shows. DJ Bonics from Go 95.3 is touring as Wiz's turntablist. (8 p.m. Fri., the Armory, 500 S. 6th St., Mpls., $40, ticketmaster.com.)
O'Gara's swan song: The wrecking ball is coming to the bar that Charles Schulz made famous (he lived upstairs), so it's a final blowout for the backroom music club formerly known as the Garage. Who better to close it out than two old regulars in this venerable St. Paul watering hole: the once-ubiquitous Twin Cities rocker G.B. Leighton on Friday and the rock-solid Martin Zellar & the Hardaways on Saturday. O'Gara's will return in a smaller format on the same site in a new housing development. (9 p.m. Fri. & Sat. O'Gara's, St. Paul, $15 Fri., $20 Sat.)
Greensky Bluegrass: Trampled by Turtles' longtime, kindred string-band cohorts from Kalamazoo, Mich., are enjoying their own flourishing career. They return to the Palace fresh off a three-night run at Red Rocks Amphitheater after also putting on their own festival. (8 p.m. Fri., Palace Theatre, $25-$40, etix.com.)
Lucero: Well-remembered locally from their opening set at the Replacements' big Midway Stadium gig in 2014, raspy howler Ben Nichols and his groovy Memphis country-rock band are back with a rawer, back-to-the-barroom-basics album, "Among the Ghosts." Denver tunesmith Brent Cowles opens. (8 p.m. Sat., First Avenue, $25, first-avenue.com.)
Shakey Graves: With elements of Texas blues, '60s garage-rock and borderland sounds mixed into his eclectic sound, the artist doubly known as Alejandro Rose-Garcia is uniquely reflective of the Austin, Texas, scene that birthed him. He changed up his sound quite dramatically for his fifth record, "Can't Wake Up," which trades his rootsy flavor for more of a Beatles/Dr. Dog-flavored psychedelic pop. The excellent Wild Reeds open. (8:30 p.m. Sat., Palace Theatre, 17 W. 7th Place, St. Paul, $30-$35, eTix.com.)
Sting and Shaggy: Since his days with the Police, Sting has shown his affinity for reggae. And his unexpected collaboration this year with veteran Jamaican star Shaggy on the oddly titled album "44/876" (it's the respective phone codes for their native countries) is surprisingly fun — and devoid of Sting's usual seriousness. Their concert repertoire draws from their album as well as the catalogs of Sting, the Police and Shaggy, including a mashup of "Roxanne" and "Boombastic." (8 p.m. Sun. the Armory, Mpls., $67.50 and up, ticketmaster.com)
Corky Siegel and Randy Sabien: The always adventurous Chicago blues pianist/harmonica player teams with the jazzy violinist who used to teach at McNally Smith College of Music. (5 p.m. Sun. Crooners, Fridley, $20, croonersloungemn.com)
Calvin Johnson: The monotone-voiced, sardonically lyrical frontman of the influential late-'80s Olympia, Wash., band the Beat Happening and the founder of K Records hates playing clubs. So he found a happening, new book store here to tout his new album, "A Wonderful Beast," produced by the Black Keys' Patrick Carney. (8 p.m. Sun., Moon Palace Books, 3032 Minnehaha Av., Mpls., $10-$12, ticketfly.com.)