Question: This song that was released on August 30, 2009, was the fourth single off of the album for what singer who co-produced that album with Nathan Chapman?

Related documents: [0]  [DOC] Fearless is the second studio album by the American singer-songwriter Taylor Swift. The album was released on November 11, 2008, by Big Machine Records. As with her first album, "Taylor Swift", Swift wrote or co-wrote all thirteen tracks on "Fearless". Most of the songs were written as the singer promoted her first album as the opening act for numerous country artists. Due to the unavailability of collaborators on the road, eight songs were written by Swift. Other songs were co-written with Liz Rose, Hillary Lindsey, Colbie Caillat, and John Rich. Swift also made her debut as a record producer, co-producing all songs on the album with Nathan Chapman. [END] 
[1]  [DOC] "Fifteen" is a country pop song performed by American singer-songwriter Taylor Swift. Swift self-penned the song and co-produced it along with Nathan Chapman. "Fifteen" was released on August 30, 2009 by Big Machine Records, as the fourth single from Swift's second studio album, "Fearless" (2008). The song was inspired by Swift's freshman year of high school at Hendersonville High School, where she first encountered heartbreak, along with her best friend Abigail Anderson. After writing it, Swift asked Anderson for authorization to record the song (due to personal references in the song); Anderson affirmed and it was ultimately included on "Fearless". "Fifteen" is a ballad, which has Swift reminiscing on events that occurred to her and her best friend at the age of 15 and cautioning teenagers to not fall in love easily. [END]  
Answer: Taylor Swift
Taylor Swift