Recognized as one of the world's leading authorities on voice. Roger taught Reese Witherspoon and Joaquin Phoenix how to sing and produced all of the vocals for the hit film Walk the Line. His work resulted in three Golden Globe Awards and an Academy AwardŽ. Here are just a few of the singing stars Roger has coached: The Jacksons, Motley Crue, The Beach Boys, Def Leppard, Poison, Toto, Chicago, Eminem, Rob Thomas/Matchbox 20, Iggy Pop, Smashing Pumpkins, Hanson and En Vogue. He has vocally produced more than 100 million CDs worldwide.