Premise: Unapologetic is the seventh studio album by Barbadian singer Rihanna . It debuted at number one on the US Billboard 200 with first-week sales of 238,000 copies , becoming Rihanna 's first number one album on the chart and best-selling debut week of her career . The former peaked at number one on the UK Singles Chart and the US Billboard Hot 100 where it became Rihanna 's twelfth number one song , tying her with Madonna and The Supremes for fourth most number one songs in the history of the chart .
Hypothesis: Unapologetic is a Rihanna album.
Label: ENTAILMENT