The singer’s first album in six years became the first release to reach that milestone since Taylor Swift’s “Evermore” a year ago. But in 2015, Adele’s “25” sold 3.4 million its first week.The singer’s first album in six years became the first release to reach that milestone since Taylor Swift’s “Evermore” a year ago. But in 2015, Adele’s “25” sold 3.4 million its first week.Read MoreMusic, Billboard (Magazine), Adele (Singer), 30 (Album)