Once More, With Feeling (OST Buffy the Vampire Slayer 6х07) - I've Got A Theory ( vocal by Anthony Stewart Head, Alyson Hannigan, Nicholas Brendon, Amber Benson, Emma Caulfield, Sarah Michelle Gellar )
Once More, With Feeling (OST Buffy the Vampire Slayer 6х07) - I've Got A Theory ( vocal by Anthony Stewart Head, Alyson Hannigan, Nicholas Brendon, Amber Benson, Emma Caulfield, Sarah Michelle Gellar )