"Reflection" was written and produced by Matthew Wilder and David Zippel for the 1998 Disney animated featureMulan. Several new and established singers auditioned to record the pop version of the song, but Wilder and Zippel felt none of them could hit E-flat 5. Christina Aguilera recorded her audition for the song using an old tape recorder in her bathroom, and sang E-flat 5 on a cover of Whitney Houston's "Run to You". Wilder and Zippel were impressed by her vocals, and they gave her the job.
Released as an airplay-only single, "Reflection" peaked at number nineteen on the U.S. BillboardAdult Contemporary chart. A music video was released, and was filmed at the China Pavilion (highlighting the film's setting) at the Epcot theme park at the Walt Disney World Resort in Florida. The song was Aguilera's first single, and after it led to her being signed to a record deal, it was included on her 1999 debut album, Christina Aguilera. "Reflection" was nominated for a Golden Globe for Best Original Song. This song has also been covered by Brazilian Pop Singer Sandy and Kacau Gomes for the Brazilian version of Mulan,Chinese Pop Diva Coco Lee for the Chinese version and Korean Pop Star Lena Park for the Korean version of this movie, Lucero and Malu for the Latin American and European Spanish versions as well. (Aguilera herself has her own Spanish version released in 2001.