R&B Number-One Album of the Year Quiz

Every album to finish a year at number one on Billboard's R&B, soul and hip-hop year-end chart — the complete published run. Name each from its year (the artist is your clue on the easier tiers), pick the year's real number one from a group of genuine chart-toppers, match each album to the artist credited with it, sort a selection into the order they led, or tap the R&B number ones out of a grid seeded with real pop and country chart-toppers. Where a title is too generic to identify a record on its own, the artist is shown alongside it. Parsed verbatim from the published year-end table; no answer is named here.