What song by Rivers Cuomo of Weezer appears in the movie "Aquamarine"?

The song by Rivers Cuomo that appears in “Aquamarine” is “Island in the Sun.” The song was written by Cuomo and recorded by his band, Weezer, for their 2001 self-titled third album, commonly called the Green Album.

“Island in the Sun” became one of Weezer’s most recognizable songs, helped by its relaxed melody, warm production, and two memorable music videos. Producer Ric Ocasek reportedly pushed for the track to be included on the album even though it was not part of the original plan. It was released as the album’s second single in 2001.

The 2006 film “Aquamarine” includes the song in its soundtrack, alongside music from artists such as Emma Roberts, JoJo, Mandy Moore, and the Jonas Brothers. A common mix-up is that the soundtrack listing identifies “Island in the Sun” with Emma Roberts, because she performs a version in the film; the underlying song is Cuomo’s Weezer composition.