"LoveStoned" (also known as "LoveStoned/I Think She Knows") is a song recorded by American singer and songwriter Justin Timberlake for his second studio album, FutureSex/LoveSounds (2006). It was written and produced by Timberlake, Tim "Timbaland" Mosley and Nate "Danja" Hills. In contrast to the album's theme about sexual innuendos with themes of love, "LoveStoned" contains sexually suggestive lyrics. Musically "LoveStoned" is an upbeat dance song, contrasting with the interlude of "I Think She Knows" which has a more slow, quiet, guitar-driven sound. The song won the Grammy Award for Best Dance Recording at the 2008 ceremony.

After the release of his debut solo album Justified in 2002, Timberlake thought he "lost his voice" in the sense that he did not like what he was doing. He felt "burnt out" after Justified; this partly changed his career's direction, wherein he took a break from the music industry and instead appeared in films. The first role he took during this time was as a journalist in the thriller Edison Force, which was filmed in 2004 and released on July 18, 2006. He also appeared in the films Alpha Dog, Black Snake Moan, Richard Kelly's Southland Tales, and voiced Prince Artie Pendragon in the animated film Shrek the Third, released on May 18, 2007.

When he felt inspired to compose songs again, he did not choose to reunite with his former band NSYNC, although he considered doing it after his first record. Instead, he went to former Justified collaborator Timbaland's studio in Virginia Beach, Virginia to begin sessions for his second album. However, not one of them had an idea of what the album would be–no plan for it and even a title. "LoveStoned / I Think She Knows" was written by Justin Timberlake, Timbaland, and Nate "Danja" Hills as a sexual love song. In an interview with MTV News, while promoting his second album, FutureSex/LoveSounds, Timberlake revealed that the first half of the album generally focuses on sex. "LoveStoned" contains sexually suggestive lyrics, with the line, "She's going home with me tonight".

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