Conversation so far:
What did the musician Michael McDonald do with the Doobie Brothers?
Michael McDonald sang the lead vocals on some of the Doobie Brothers' best-known songs such as Real Love, Takin' It to the Streets, and What a Fool Believes.
How long did the musician Michael McDonald sing with the Doobie Brothers?
Michael McDonald is known for his distinctive, soulful voice and as a member of The Doobie Brothers from 1975 to 1982, 1987, 2019 to the present.
What instrument did the musician Michael McDonald play in the band The Doobie Brothers?
Michael McDonald played keyboards for the band The Doobie Brothers.
What did the musician Michael McDonald sing for the Doobie Brothers?
Michael McDonald sang Real Love, Takin' It to the Streets, Little Darling (I Need You), It Keeps You Runnin', Minute by Minute, and What a Fool Believes.
Did the musician Michael McDonald have any hits with the Doobie Brothers?
The Doobie Brothers's What a Fool Believes became a number-one single in the U.S. and earned Michael MacDonald a 1980 Grammy Award for Song of the Year
Did the musician Michael McDonald win any awards besides  the 1980 Grammy for Song of the Year?
At the 1979 Grammys, Michael McDonald won Record of the Year and Best Pop Vocal Performance by a Duo, Group or Chorus, and Best Arrangement Accompanying Vocals.
Are there any other interesting aspects about the musician Michael McDonald's article?
Michael McDonald was recruited by the Doobie Brothers in April 1975, initially as a temporary replacement but his work proved so successful that they decided to retain him

Question: What did they do for the CMA awards show?
Self-contained rewrite: What did the Doobie Brothers do for the CMA awards show?