The Fifth Dimension Peter, Paul And Mary Kingston Trio Chad Mitchell Trio Nitty Gritty Dirt Band The Limeliters Four Seasons Serendipity Singers Jimmy Webb Glen Campbell Bobby Vinton Frankie Valli B J Thomas Shelah Marvin Gaye & Tammi Terrell Spiral Starecase The Dirt Band Lijadu Sisters Linda Ronstadt Dolly Parton Lettermen Alexandra Browne The New Christy Minstrels We Five California Guitar Trio Curtis Hairston Pablo Casals The Slip The Weavers Hank Green Kazumasa Oda Lawrence Welk Brothers Johnson Cutting Crew Kate Rusby Spanky And Our Gang The Zutons The Railsplitters Norma Waterson Sandi Patti Temtations Ian And Sylvia Amy Grant Doc Watson Canadian Brass The Seekers Sound Of Music The Frames Moody Blues