“Upside Down” is a song written and played by Jack Johnson. It is the first track on the album Sing-A-Longs and Lullabies for the Film Curious George, which was released in February 2006. Jack Johnson is an American folk rock singer-songwriter, surfer and musician known for his work in the soft rock and acoustic genres. In 2001, he achieved commercial success after the release of his debut album, Brushfire Fairytales. He has since released four more albums, a number of EPs and surfing movies/soundtracks. He is also known for organizing an annual event, the Kōkua Festival.