Critic’s picks: Pop music

Mario Anzuoni/Reuters

BOSTON GLOBE WGBH SUMMER ARTS WEEKEND You can cram a whole summer’s worth of concert-going into one weekend without spending a dime at this diverse festival. More than 20 acts from pop to jazz to world music hit two stages in Copley Square throughout the weekend, including New Orleans legend Dr. John on Friday, Afrobeat superstar Angelique Kidjo on Saturday, and Grammy-winning country and bluegrass virtuoso Alison Krauss (left) on Sunday. July 26-28. Free. Copley Square.

THE JONAS BROTHERS It’s been four years since Kevin, Nick, and Joe released an album, and the mania has died down. Will they make the transition from “boy band” to simply “band”? The trio are expected to release their fifth album, “V,” in the fall, so fans may get a sneak peek at the new direction. The JoBros have invited sprightly Boston-spawned electro-pop duo Karmin along for the ride. 7:30 p.m. July 22. $45-$101.05. Bank of America Pavilion. 800-745-3000,

Robert Plant’s in the mood to do some mighty rearranging of tunes from his solo career and the Led Zeppelin catalog. Expect world-music flourishes and trip-hop grooves to spice up the classics. Phosphorescent handles the warm-up duties. 7:30 p.m. July 25. $39-$84.50. Bank of America Pavilion.800-745-3000,


TEGAN AND SARA These sisters in song hit the Hub to promote their sublime seventh album “Heartthrob,” which is full of pop charms both giddy and wistful. Although their style has shifted over the years, the twins’ trademark harmonies remain intact. Complementary indie popsters Lucius will get the party started. 8 p.m. July 26. $38.75-$58.75. Citi Wang Theatre. 800-447-7400,