Roots of Dweezil Zappa

George Lawrence Thorogood is an American musician, singer and songwriter. His "high-energy boogie-blues" sound became a staple of 1980s US rock radio, with hits like his original songs "Bad to the Bone" and "I Drink Alone". He has also helped to popularize older songs by American icons, such as "Move It on Over", "Who Do You Love?", and "House Rent Blues/One Bourbon, One Scotch, One Beer".

Steven Siro Vai is an American guitarist, songwriter, and producer. A three-time Grammy Award winner and fifteen-time nominee, Vai started his music career in 1978 at the age of eighteen as a transcriptionist for Frank Zappa, and played in Zappa's band from 1980 to 1983. He embarked on a solo career in 1983 and has released 11 solo albums to date. He has recorded and toured with Alcatrazz, David Lee Roth, and Whitesnake, as well as recording with artists such as Ozzy Osbourne, Public Image Ltd, Mary J. Blige, Spinal Tap, Alice Cooper, Motörhead, and Polyphia. Additionally, Vai has toured with live-only acts G3, Zappa Plays Zappa, Beat and the Experience Hendrix Tour, as well as headlining international tours.