"Tiempo" (Time) is a rock song performed by Argentine band Erreway. It is the opening song and single from their second studio album Tiempo, and was written by eminent producer, director and composer Cris Morena. In January 2003, the song reached number one in Argentina and Israel, and was a massive hit throughout Latin America and Europe. "Tiempo" was the opening theme of the television series Rebelde Way during the second season, and was performed by Erreway in its final episode. is the opening single from Tiempo, the second album of Argentine band Erreway.

"Tiempo" was written in 2003 by Rebelde Way and Erreway creator Cris Morena for the band's second album Tiempo (see 2003 in music). Although "Te Soñé" was released before "Tiempo", "Tiempo" served as the opening single for the album, while "Te Soñé" was re–released. It is considered to be the most successful single of Erreway and as one of their signature songs, along with "Para Cosas Buenas" and "Memoria", reaching number one throughout Latin America, Europe and Israel. The song was voted out as the second most listened Erreway song at the Last.fm.

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