St. Vincent has made her latest late-night TV appearance performing ‘Down’ on The Tonight Show Starring Jimmy Fallon.The singer, real name Annie Clark, performed the cut from her new album ‘Daddy’s Home’ with her newly-christened Down and Out Downtown Band, retaining the ’70s spark that defines her latest records’s production and concept.The band appeared with a trio of back-up singers, vintage analogue synths, and plenty of era-appropriate fashion.