Premise: 19 is the debut studio album by British singer Adele . 21 is the second studio album by British singer Adele . Adele Laurie Blue Adkins ( [ əˈdɛl ] born 5 May 1988 ) is an English singer-songwriter . 21 is the longest-running number one album by a female solo artist in the history of the UK and US Album Charts .
Hypothesis: Adele sings.
Label: ENTAILMENT