Imagine Dragons — rock music's answer to young baseball sensation Yasiel Puig — will headline a free concert July 12 at TCF Bank Stadium as part of Major League Baseball's All-Star Week in the Twin Cities.

The Las Vegas rockers, who won a Grammy this year for the smash hit "Radioactive," performed in March 2013 for about 700 people at the Varsity Theater, just down the block from the University of Minnesota football stadium. Since then, the Dragons rocked sell out crowds at Roy Wilkins Auditorium and Xcel Energy Center, in March.

Their debut album, "Night Visions," was one of the biggest selling rock albums of 2013, topping 2 million copies. While working on its second album, the quartet released a single this month, "Battle Cry," from the soundtrack to the Michael Bay film "Transformers: Age of Extinction," which is in theaters on June 25.

Opening the free all-star concert will be Atmosphere, the veteran Minneapolis hip-hop group that issued its sixth album, "Southsiders," in May and also headlined the annual outdoor Soundset hip-hop festival in Shakopee in front of 30,000 people.

This will be the fourth concert in conjunction with an All-Star Game. This year's game is set for July 15 at Target Field.

Free tickets for the concert will be available at 10 a.m. Thursday on AllStarGame.com/concert. There is a limit of four tickets per request. All tickets are general admission whether standing on the field or sitting in the stands.

Gates to the stadium will open at 5:30 p.m. on July 12, with the concert starting two hours later.