Possible Clues:

• "Have a Little Faith ___" (John Hiatt)
• 'She Believes __'
• 'I didn't know I had it ___!'
• 'By the powers vested ___...'
• 'By the power vested -- ...'
• 'She Believes ___' (Kenny Rogers hit)
• Kenny Rogers's 'She Believes __'
• 'The Gypsy ___' ('Anything Goes' song)
• ''I've Got the Music __'': 1974 hit
• "She Believes ___" (Kenny Rogers song)