India, Feb. 25 -- Ryan Tedder, frontman of OneRepublic and a Grammy-winning producer, surprised fans at the band's Seoul concert on Monday by revealing his involvement in South Korean boy band BTS' upcoming album Arirang, slated for release on March 20. Speaking on stage, Tedder said, "Most recently, I did a lot of work on the upcoming BTS album," he said, adding, "It absolutely blew me away how talented they were, and I think it's honestly one of the craziest things I've worked on in my whole career. I know you're going to love it." The producer previously collaborated with BTS member Jimin on his 2024 single Be Mine, a track he described as the piece he was "most proud of". Over the years, Tedder has penned chart-toppers for singers like Beyonce, Ed Sheeran, Adele and Taylor Swift, earning three Grammys for Album of the Year. He has also worked across the K-pop industry, teaming up with BLACKPINK member Lisa and Tomorrow X Together. HTC...