Robert Siers Cavallo (born March 21, 1963) is an American record producer, musician, and record industry executive. He is among the biggest-selling producers in history, and has produced or had creative involvement in albums that have sold over 130 million units worldwide. Primarily known for his production work with Green Day, he has also worked with Linkin Park, My Chemical Romance, Eric Clapton, Beth Hart, the Goo Goo Dolls, the Dave Matthews Band, Kid Rock, Jawbreaker, Alanis Morissette, Black Sabbath, Phil Collins, Paramore, Sixpence None the Richer, Lil Peep, Shinedown, and Meat Loaf. He is also a multiple Grammy Award winner. Cavallo plays multiple instruments and has professional credits for his bass, keyboard, organ, piano, guitar and percussion work. Early life Cavallo was born in Washington, D.C. and moved to Los Angeles, California with his family at age 10. His interest in music began at age 11 after listening to his father's The Beatles collection. He graduated from the University of Southern California, as a member of the Sigma Alpha Mu fraternity, in 1985 with a B.A. in English. Cavallo also attended the Dick Grove School of Music. Career Cavallo worked with George Massenburg at The Complex Recording Studios early in his career. He joined Warner Bros. Records as A&R representative in 1987 and worked with Black Sabbath as one of his first assignments. He also signed both the Goo Goo Dolls and Green Day during his first tenure at Warner Bros. Records. Cavallo became senior vice-president of A&R of Hollywood Records in 1998. He moved to Warner Music Group in 2002 and became chief creative officer of the company in 2009. He was named chairman of Warner Bros. Records in 2011, and served in that position until December 2012. Cavallo also co-founded Level 7, a media company, with Broadcom Corporation co-founder Henry T. Nicholas III. Platinum albums and tracks Cavallo has produced multiple platinum-selling albums and tracks. Platinum-selling albums he has produced include: Green Day's Dookie, Insomniac, Nimrod, American Idiot and Bullet in a Bible; Goo Goo Doll's Dizzy Up the Girl, A Boy Named Goo and Gutterflower; My Chemical Romance's The Black Parade; Dave Matthews Band's Big Whiskey and the Groogrux King,, Come Tomorrow; David Cook's David Cook; Phil Collins's Testify; Kid Rock's Rock n Roll Jesus; and Shinedown's The Sound of Madness. Tracks he produced, which were on platinum-selling albums include: Goo Goo Doll's "Iris" from the