Mercy Mercy Me (The Ecology)

Led by Gaye playing piano, strings conducted by Paul Riser and David Van De Pitte, multi-tracking vocals from Gaye and the Andantes, multiple background instruments provided by the Funk Brothers and a leading sax solo by Wild Bill Moore, the song rose to number 4 on Billboard's Pop Singles chart and number one for two weeks on the R&B Singles charts on August 14 through to August 27, 1971.

[1] The distinctive percussive sound heard on the track was allegedly a wood block struck by a rubber mallet, drenched in studio reverb.

[2] The song also brought Gaye one of his rare appearances on the Adult Contemporary chart, where it peaked at number 34.

[3] Cash Box described the song as being "a similar chugging ballad effort" to "What's Going On," stating that "the easy going surface lies gently above an exciting rhythm track.

"[5] In 1991, a music video of the song was released by Motown Records, featuring appearances by celebrities such as Big Daddy Kane, Bobby Brown, Diana Ross, David Bowie and Wesley Snipes.