Released in 1998 on the album Train, 'Rat' stands as a defining track in the band's early discography, blending indie rock with a distinct, rhythmic groove. The song features the signature vocal style of lead singer Pat Monahan, characterized by its melodic phrasing and emotional delivery that became a hallmark of the group's sound during this era. As a staple of their catalog, the recording captures the transitional period of Train's development, moving away from their earlier pop-punk roots toward a more polished, alternative rock identity. The track has since become a cultural touchstone, frequently covered by other artists and recognized for its catchy, infectious energy that resonated with audiences across the United States. Its enduring popularity highlights the band's ability to craft songs that balance commercial appeal with authentic musical expression.