Iron Maiden frontman Bruce Dickinson delivered a powerful rendition of the U.S. national anthem on Sunday (14) ahead of the Pittsburgh Steelers’ home opener against the Seattle Seahawks at Acrisure Stadium in Pittsburgh, PA.Watch the clip below:Dickinson is wrapping up his first solo North American tour in nearly 30 years, which concludes on October 5 in Los Angeles. Earlier in the run, he surprised a New Orleans busker by joining in on a Judas Priest cover. The tour kicked off on August 22 in Anaheim, and we were there for the opening night. Check out our coverage here.