"Narihajimeta Koi no Bell" (鳴り始めた恋のBELL, The First Chime of Love's Bell) is the debut single of Japanese girl group Ongaku Gatas, formed from members of Hello! Project's futsal team Gatas Brilhantes H.P. and Hello Pro Eggs, which was released on September 12, 2007, under the Zetima label (distributed by Sony Music Entertainment Japan).