The Treniers were an American musical group led by identical twins Cliff and Claude Trenier). Active since the 1940s, they played a cross between swing and early rock n' roll. Though their sound is more swing influenced, the Treniers incorporated a thumping backbeat and copious songs that included the words "rock" and "roll" - "Rocking on Sunday Night" and "It Rocks! It Rolls! It Swings!", for example, and in the 40's were already playing "Rockin' Is Our Bizness Read more on Last.fm