More than one band has used this name.
1) The Bells were a Canadian rock band from Montreal that had two notable hit singles in the early 1970s. Featuring South African natives, Anne and Jackie Ralph as well as Cliff Edwards, Doug Gravelle and Gordie McLeod, the group started in 1965 as the Five Bells.
They had their first hit in 1969 with "Moody Manitoba Morning", followed in 1970 (after shortening their name and some personnel changes) by "Fly Little White Dove, Fly", which became a Top-10 hit in Canada. Read more on Last.fm