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Jason Derulo (stylised as Jason Derülo) is the self-titled debut studio album by American singer Jason Derulo, released on March 2, 2010. The album was produced by J.R. Rotem and features the hit singles, "Whatcha Say", which reached number one on the US Billboard Hot 100; "In My Head" and "Ridin' Solo", which marks Derulo's third consecutive number-one in the UK R&B Chart.

Derulo wrote songs for many successful artists from 2006 to 2009, and his debut single was released on 4 August 2009. "Whatcha Say" was produced by J.R. Rotem with additional production by Fuego. The song samples the Imogen Heap song "Hide And Seek", and in late August 2009, the song debuted at #54 on the US Billboard Hot 100 and peaked at number one on the chart in November 2009, becoming Derulo's first single to reach number-one on that chart. Due to Derulo's sudden success, he began work on his debut album.

By December 2009 the album was completed, and he subsequently released the second single from his album, "In My Head", on 8 December 2009. It debuted at #63 on the US Billboard Hot 100, and has since reached number five, becoming another top-ten hit for Derulo. Jason began promoting the album in late November 2009 by appearing as one of the opening acts for Lady Gaga's The Monster Ball Tour, which will end in 2011. 'Ridin' Solo' originally sampled "Bitter Sweet Symphony" by The Verve; however, the sample was not cleared and was subsequently replaced.

"Whatcha Say" was released as the lead single from the album on 4 August 2009. The single became available for digital download on 5 May 2009, but wasn't officially released until 4 August. The song samples heavily Imogen Heap's song "Hide and Seek", and reached #54 on the US Billboard Hot 100 in late August 2009. It peaked at number one on the Hot 100 in mid-November 2009, which made Derulo a star internationally, as the single reached the top-ten worldwide and reached number one in many other countries as well. The music video was filmed in August 2009 and was released in September 2009, and it received heavy rotation on VH1 and MTV. "In My Head" was released as the second single from the album on 8 December 2009. The single is more uptempo and dance-influenced than his debut single. The single debuted at #63 on the US Hot 100 in late December 2009, and has since reached number five on the Hot 100, becoming his second top-five hit in the US. Jason recorded a remix of the song with Nicki Minaj. It debuted at number one on the Australian Singles Chart on 22 February 2010 and number one on the UK Singles Chart.

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