1989

1989 is the fifth studio album by American singer-songwriter Taylor Swift, released on October 27, 2014, through Big Machine Records. Following the release of her cross-genre fourth studio album Red (2012), noted for its straightforward pop hooks and electronic production, Swift's long-standing status as a country artist was met with media skepticism. Inspired by 1980s synth-pop to create a record that shifted her sound from country-oriented to mainstream pop, Swift enlisted Max Martin as co-executive producer and named her fifth album after her birth year.

Martin and his collaborator Shellback shaped the album's synth-pop sound characterized by heavy synthesizers, programmed drums, and processed backing vocals. Swift wrote the songs inspired primarily by her personal life surrounding past romantic relationships, which had been a trademark of her songwriting. The songs on 1989 express lighthearted perspectives towards failed romance, departing from her previous antagonistic attitude. To promote the album, Swift and Big Machine implemented aggressive marketing through product endorsements, television and radio appearances and social media engagement. They pulled 1989 from free streaming services such as Spotify, prompting an industry discourse on the impact of streaming on music sales.[note 2]

After the album's release, Swift embarked on the 1989 World Tour, which was the highest-grossing tour of 2015. The album was supported by seven singles, including three US Billboard Hot 100 number ones: "Shake It Off", "Blank Space", and "Bad Blood". Contemporary critics praised Swift's songwriting, which offers emotional engagement that they found uncommon in the mainstream pop scene. Meanwhile, the synth-pop production raised questions regarding Swift's authenticity as a lyricist. The album appeared on several publications' lists of the best albums of the 2010s and featured in Rolling Stone's 2020 revision of their 500 Greatest Albums of All Time. At the 58th Grammy Awards in 2016, 1989 won Album of the Year and Best Pop Vocal Album, making Swift the first female solo artist to win Album of the Year twice.

Released amidst a decline in record sales, 1989 was a huge commercial success. In the US, Swift became the first artist to have three albums each sell over one million copies within their first week of release. The album spent 11 weeks atop the Billboard 200 and received a ninefold platinum certification from the Recording Industry Association of America (RIAA). It also earned multi-platinum certifications in Australia, Canada and the UK, and has sold over 10 million copies worldwide. 

information from:wikipedia