"I Believe" is a song by American singer Marcella Detroit, released on February 28, 1994, via London Records as the lead single from her second studio album, Jewel (1994). Written by Detroit and produced by Chris Thomas, the song went on to become Detroit's most successful single, peaking at number 11 in the United Kingdom, and achieved similar success internationally. Its highest peak on a national chart was in Australia, where it reached number 10.