Crossword puzzle clue "marvin gaye singer who first got famous via youtube 2 wds"

"Marvin Gaye" singer who first got famous via YouTube: 2 wds.

Hit song that shares more than a passing resemblance to Marvin Gaye's "Got to Give It Up" ... and a hint for four areas of this puzzle

"___ Get a Witness" (1963 Marvin Gaye hit): 2 wds.

Song by Marvin Gaye that was #20 on Billboard's year-end Hot 100 for 1977: 5 wds.

1971 Marvin Gaye hit about bad urban conditions: 3 wds.

"How Sweet It ___ Be Loved by You" (Marvin Gaye album): 2 wds.

Marvin Gaye hit that was #4 on Billboard's year-end Hot 100 for 1973: 4 wds.

1971 Marvin Gaye hit about the environment: 3 wds.