The 20/20 Experience (also known as The 20/20 Experience – 1 of 2) is the third studio album by American singer Justin Timberlake. It was released on March 15, 2013, by RCA Records, as the follow-up to his second studio album FutureSex/LoveSounds (2006). It is considered the first half of a two-piece project, later being supplemented by his fourth studio album The 20/20 Experience – 2 of 2 (2013). The record incorporates neo soul styles with elements of older soul music; its lyrics discuss themes of romance and sex. As executive producer, Timberlake enlisted previous collaborator Timbaland to work alongside Jerome "J-Roc" Harmon and Rob Knox.

The 20/20 Experience received generally positive reviews from music critics, who complimented its musical diversity from his previous albums, although others criticized a lack of variation within the album itself. The album debuted at number one on the US Billboard 200 with first-week sales of 968,000 copies, becoming Timberlake's second number one album on the chart and best-selling debut week of his solo career. The album became the best selling album of 2013 in the US. The album also became Timberlake's third consecutive number one album in the United Kingdom.

Three singles have been released from The 20/20 Experience. Its lead single "Suit & Tie" was peaked within the top five in several countries worldwide, and reached 3 in the US, and its second single "Mirrors" reached number 1 in the UK and 2 in the US. Timberlake embarked on the Legends of the Summer Stadium Tour with Jay-Z to further promote the album, as well as The 20/20 Experience World Tour. The album, as part of The 20/20 Experience – The Complete Experience, was nominated for a Grammy Award in the category Best Pop Vocal Album.