Dan Fogelberg was an American musician, songwriter, composer, and multi-instrumentalist. He is best known for his 1980s hits, including "Longer" (1980), "Leader of the Band" (1981), and "Same Old Lang Syne" (1981).  Twin Sons of Different Mothers released in 1978 was the first of two collaborations with jazz flautist Tim Weisberg, which found commercial success with songs such as "The Power of Gold".