Dave Clark 5 and Les Beatlettes.
This all-girl from Quebec garnered quite a few top ten hits. Unlike most girl groups of the period, these girls played their own musical instruments. Tragically, the band was involved in a car crash right before a Paris gig, claiming the lives of two band members.
Les Beatlettes - Reste Encore
Biography of Helen Duguay, Les Beatlettes' bassist, here.
Article from The Ye-Ye Girls website.
French article from Retro Jeunesse 60.
And another French one here.