One of the most popular acts of the early-'60s folk revival, Canadian duo Ian Tyson (b. 1933) and Sylvia Tyson (b. 1940) made several fine albums that spotlighted their stirring harmonies on a mixture of traditional and contemporary material. While these recordings can seem a tad earnest and dated today, they were overlooked influences upon early folk-rockers such as the Jefferson Airplane, the We Five, the Mamas and the Papas, and Fairport Convention, all of whom utilized similar blends of male/female lead/harmony vocals. They were also inspirations to fellow Canadian singer/songwriters such as Neil Young, Joni Mitchell, and Gordon Lightfoot. Like most acoustic folkies, after the mid-'60s they moved into folk-rock and country-rock, though the results were less impressive than their early work.