"I See the Light" is a song written by composer Alan Menken and lyricist Glenn Slater for Walt Disney Animation Studios' animated film Tangled (2010). A duet originally recorded by American recording artist and actress Mandy Moore and American actor Zachary Levi in their respective film roles as main characters Rapunzel and Flynn Rider, the folk-inspired pop ballad serves as both the film's love and theme song. Lyrically, "I See the Light" describes the developing romantic relationship between Rapunzel and Flynn, and is featured as the seventh track on the film's soundtrack album.

Eugene Fitzherbert, known by the alias Flynn Rider, is a fictional character who appears in Walt Disney Animation Studios' animated film Tangled (2010), its short 2012 film Tangled Ever After, and the 2017 television series Tangled: The Series. The character is voiced by American actor Zachary Levi, who decided to audition for the role upon learning that he would also be providing the character's singing voice. Levi's duet with singer and co-star Mandy Moore, "I See the Light", would go on to become the actor's first professionally recorded song and musical debut.