"You da One" is a song by Barbadian recording artist Rihanna recorded for her sixth studio album, Talk That Talk (2011). It was co-written by Rihanna with Ester Dean, Henry Walter, John Hill and Lukasz Gottwald. Production of the song was completed by Gottwald, under his production name Dr. Luke, and Cirkut. Kuk Harrell and Marcas Tovar recorded the track at the Sofital Paris Le Laubourg, Room 538, and Westlake Recording Studios in Los Angeles, California. It premiered on US radio on November 11, 2011, and was made available to download digitally throughout Europe and Australasia on November 14, 2011. It was added to US Mainstream, rhythmic and urban radio station playlists on November 29, 2011. Throughout December 2011 and January 2012, a remix extended play (EP) was released worldwide.

Musically, "You Da One" is a mid-tempo pop and reggae song, which incorporates elements of electropop, dancehall and dubstep. It also features a dubstep bridge before the final chorus. It garnered positive reviews from music critics, many of whom complimented the West Indian and Caribbean tone, and compared it to "What's My Name?" and "Man Down", from her previous studio album Loud (2010). The song achieved moderate chart success; it peaked at number one on the US Dance Club Songs and number 14 on the Billboard Hot 100. Internationally, it peaked inside the top 10 in New Zealand, South Korea and on the UK R&B Chart, and attained top twenty positions in Canada, Hungary, Norway and Sweden.

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