Historical clue formulations

• James or Luther of R&B — 2017-11-09
• James ___, duettist on the 1982 #1 hit "Baby, Come to Me" — 2011-09-11
• Soul singer James with the 1990 #1 hit "I Don't Have the Heart" — 2010-12-12
• R & B singer James — 2003-01-19