Answer
The song "S.O.S." co-written by Ryan Tedder was for the Jonas Brothers. Tedder is a renowned songwriter and record producer who has collaborated with numerous artists across various genres. His contributions to the Jonas Brothers' music showcase his versatility and ability to create chart-topping hits. "S.O.S." is one of their well-known songs that resonates with listeners and highlights Tedder's talent for crafting memorable melodies and lyrics.