Ryan Benjamin Tedder (born June 26, 1979) is an American singer, songwriter, and record producer. He is best known as the frontman and vocalist for the pop rock band OneRepublic, as well as his work as a songwriter and producer for various artists since the mid-2000s, including U2, Beyoncé, Leona Lewis, Miley Cyrus, Ed Sheeran, Jonas Brothers, Jennifer Lopez, Camila Cabello, Lady Gaga, Maroon 5, MØ, One Direction, Sugababes, Taylor Swift, Katy Perry, Ariana Grande, Logic, Paul McCartney, Blackpink, Twice, Bastille, and Anitta.

Tedder's production and songwriting work has proven commercially successful. "Apologize", performed by OneRepublic, "Bleeding Love", performed by Leona Lewis, and "Halo", performed by Beyoncé, all made the list of best-selling singles of all time. In early 2014, Billboard named him "The Undercover King of Pop" and featured him on the magazine's cover. He is one of the producers on the reality show Songland. He is a three-time recipient of the Grammy Award for Album of the Year, due to his production credits on Adele's 21 and 25, and Taylor Swift's 1989.

Source: Wikipedia (https://en.wikipedia.org/wiki/Ryan_Tedder)