First recorded by Smokey Robinson & the Miracles (US #23/R&B #13 1967).
Other hit version by Kim Carnes (US #10/MOR #6 1980).
From Songfacts.com: “In the book Where Did Our Love Go?: The Rise and Fall of the Motown Sound, Smokey Robinson explained that he wrote ‘More Love’ for his wife Claudette, and it’s one of his most personal songs. Claudette had a series of miscarriages and gave birth to twins who were stillborn. She felt like she was letting Smokey down, and he wrote this song to let her know how he felt. ‘I wanted to reassure her that I was cool no matter what happened, because I still had her,’ Robinson explained. Claudette had left The Miracles a few years earlier, but she returned to sing backup on this track.
“Kim Carnes recorded this in 1980, taking it to #10 in the US. Her version was produced by George Tobin, who was also working at Motown at the time. The next year, Smokey Robinson called Tobin to record another one of this songs with Carnes: ‘Being With You’. By that time, Tobin and Carnes had had a falling out, so George convinced Smokey to record the song himself, and ‘Being With You’ became his biggest hit as a solo artist.”
Kim Carnes, “More Love” (1980):