During his nine-year stint with Adderley, he wrote the hit song "Mercy, Mercy, Mercy."

Kenny Blake - alto saxophone on "Mercy Mercy Me"

Mercy Mercy (2012)

"Mercy Mercy Me (The Ecology)" soon became one of Gaye's most famous songs in his extensive catalogue.

"Mercy Mercy Me (The Ecology)" was another emotional plea, this time to the environment.

"At Last" is scheduled to be the first UK and "Mercy Mercy" the first US single issued from the album.

It also ended in a much faster and abrupt tone leading into the album's next single, "Mercy Mercy Me (The Ecology)".

Jaco Pastorius jamming with the tune of Mercy,Mercy.

Joe Bonamassa - guitar on "Mercy Mercy"

"Mercy Mercy" is a blues song written by Don Covay and Ronald Dean Miller.