Michael Hanley McDonald is an American singer, keyboardist, and songwriter. Known for his distinctive, soulful voice, he was a backing vocalist for Steely Dan from 1973 to 1980 and rose to fame as a lead vocalist of the Doobie Brothers as well as its keyboardist across various stints. McDonald wrote and sang several hit singles with the Doobie Brothers, including "What a Fool Believes", "Minute by Minute", "Takin' It to the Streets", "Real Love" and "It Keeps You Runnin'". McDonald has also performed as a prominent backing vocalist on numerous recordings by artists including Toto, Steely Dan, Christopher Cross, and Kenny Loggins.