"Crazier" is a song by American recording artist Taylor Swift. The song was written by Swift and Robert Ellis Orrall and produced by Nathan Chapman with Swift's aid. The song was featured in both the film Hannah Montana: The Movie and on its soundtrack. The song is a relaxed ballad with country pop qualities and lyrics that describe being in love. Swift performed the song as herself during a cameo in the Hannah Montana: The Movie; this scene was taken from the film and released as a music video for "Crazier".

"Crazier" was praised by critics, many of whom named it the best song on the soundtrack. Digital downloads began immediately after the soundtrack's release on March 23, 2009, and led to commercial success in Australia, Canada, the United Kingdom, and the United States. Its highest international peak was at number seventeen on the United States chart, the Billboard Hot 100.

Swift co-wrote "Crazier" with Robert Ellis Orrall. The song is a ballad that, according to Allmusic, embodies Hannah Montana: The Movie's theme of merging country and pop music. The song is set in compound time with six eighth notes per bar. It is played in E major at a moderately fast tempo of 144 beats per minute. Swift's vocals span one octave, from E₃ to B₄. The chorus has the following chord progression, E—B—C#m—A.

Taylor Alison Swift (born December 13, 1989) is an American singer-songwriter and occasional actress. Raised in Wyomissing, Pennsylvania, Swift moved to Nashville, Tennessee at the age of fourteen to pursue a career in country music. She signed to the independent label Big Machine Records and became the youngest songwriter ever hired by the Sony/ATV Music publishing house. The release of Swift's self-titled debut album in 2006 established her as a country music star. "Our Song", her third single, made her the youngest sole writer and singer of a number one song on the country chart. She received a Best New Artist nomination at the 50th Grammy Awards.

Swift's second album, Fearless, was released in late 2008. Buoyed by the chart success of the singles "Love Story" and "You Belong with Me", Fearless attracted a crossover audience and became the top-selling album of 2009. The record won four Grammy Awards, with Swift becoming the youngest ever Album of the Year winner. Fearless also received Album of the Year plaudits at the American Music Awards, Academy of Country Music Awards and Country Music Association Awards, making it the most awarded album in country music history. In 2010, Swift released her third album, Speak Now, which sold over one million copies in its first week. She then embarked on the 111-date Speak Now World Tour, which was attended by over 1.6 million fans and has become one of the highest-grossing concert tours of all time. The album's third single, "Mean", won two Grammy Awards for Best Country Song and Best Country Solo Performance. Swift is currently recording her fourth studio album, due for release in the fall of 2012.