Joseph Satriani (born July 15, 1956) is an American musician, composer, songwriter, and guitar teacher. Early in his career, Satriani worked as a guitar instructor, with many of his former students achieving fame, such as Steve Vai, Larry LaLonde, Rick Hunolt, Kirk Hammett, Andy Timmons, Charlie Hunter, Kevin Cadogan, and Alex Skolnick; he then went on to have a successful solo music career. He is a 15-time Grammy Award nominee and has sold over 10 million albums, making him the best-selling instrumental rock guitarist of all time.
In 1988, Satriani was recruited by Mick Jagger as lead guitarist for his first solo tour. Satriani briefly toured with Deep Purple as the guitarist, joining shortly after the departure of Ritchie Blackmore in November 1993. He has worked with a range of guitarists during the G3 tour, which he founded in 1995. Satriani has been the guitarist for the supergroup Chickenfoot since joining the band in 2008.
Steven Siro Vai (/vaɪ/; born June 6, 1960) is an American guitarist, composer, singer, 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 eight solo albums to date. He has recorded and toured with Alcatrazz, David Lee Roth, and Whitesnake, as well as recording with artists such as Public Image Ltd, Mary J. Blige, Spinal Tap, and Ozzy Osbourne. Additionally, Vai has toured with live-only acts G3, Zappa Plays Zappa, and the Experience Hendrix tour, as well as headlining international tours.
Vai has been described as a "highly individualistic player" and part of a generation of "heavy rock and metal virtuosi who came to the fore in the 1980s". He released his first solo album Flex-Able in 1984, while his most successful release, Passion and Warfare (1990), was described as "the richest and best hard rock guitar-virtuoso album of the '80s". He was voted the "10th Greatest Guitarist" by Guitar World magazine, and has sold over 15 million records.