Paul Gilbert (born November 6, 1966) is an American hard rock and heavy metal guitarist. He is best known for being the co-founder of the band Mr. Big. He was also a member of Racer X, with whom he released several albums. Even at the young age of 17, Gilbert quickly became a local legend due to his advanced and extremely fast alternate picking technique, his young age, and his massive repertoire of cover material. He was hired as a GIT instructor in 1985, and recorded Racer X's debut album Street Lethal soon after.
In 1987, he was approached by Talas bassist Billy Sheehan, one of his biggest influences, about forming a band that would eventually become Mr. Big which included Pat Torpey on drums and Eric Martin on vocals. The band was initially successful in Japan, but achieved international stardom with the 1991 release of their second studio album Lean into It. This album featured the acoustic ballad "To Be with You" which rising to #1 worldwide.
In 1996, Gilbert launched a solo career, for which he has released numerous solo albums, and featured in numerous collaborations and guest appearances on other musicians' albums. Gilbert has been voted fourth-best on Guitar One magazine's "Top 10 Greatest Guitar Shredders of All Time". He has also ranked in Gibson product Guitar World's "50 Fastest Guitarists of All Time" list. In 2019 Paul Gilbert has released a new album, Behold Electric Guitar which once again he play blues with his speed style… it’s gonna be a new blues
singer Alex Band (born June 8, 1981) and guitarist Aaron Kamin. They are best known for their hit single, "Wherever You Will Go", which topped the Adult Top 40 for 23 weeks, making it the second longest running number one in the chart’s history and later named the number one song of the decade of 2000s on the Adult Pop Charts by Billboard magazine. Their debut album Camino Palmero was released in July 2001 and was a commercial success. 
Their second album Two, lead single "Our Lives" was featured in the closing ceremonies of the 2004 Summer Olympics as well as the opening song of the 78th annual Academy Awards. The Calling also achieved number one hits across the world with singles "Adrienne", "Our Lives", and "Things Will Go My Way". As a solo artist, Alex Band is well known for providing the vocals and face to the top five hit, "Why Don't You & I" with Carlos Santana in 2004.
Alex appeared in the movie Coyote Ugly as a musician on the stage of the club. Alex also appeared on the CSI: NY episode "Help", which aired January 14, 2009. He said there will be more acting in the future. Alex has worked with several charities. After an illness his ex-wife dealt with, Band became a supporter of organ donation, working closely with the charity Donate Life America. Annually he performs at "Alex Band's Donate Life Rocks Concert" to raise money and awareness for the cause. Since 2015, The Calling reformed with a new lineup and have announced new music to be released in 2019.
Ken Hensley (born 24 August 1945) is an English singer-songwriter, multi-instrumentalist and producer, best known for his work with Uriah Heep during the 1970s. During his time with Heep (1970–1980), they recorded 13 studio albums, and the live album Uriah Heep Live – January 1973 along with many compilations and singles. Hensley also recorded his first two solo albums, Proud Words on a Dusty Shelf (1973) and Eager To Please (1975)
He wrote or co-wrote the majority of Uriah Heep's songs during this period, including the hit singles “Gypsy”, “July Morning”,  "Lady in Black" (on which he sang lead vocals), "Easy Livin'" and “Stealin’”, as well as "Look at Yourself", on which he also sang lead vocals, and "Free Me". In 1982 Hensley joined Blackfoot, a hard rock Florida-based band. With them, he recorded two albums (1983's Siogo and 1984's Vertical Smiles). 
Since 2010, armed with a new recording contract, Ken and his band, "Live Fire" went into the studio to record their first album together. The result was the release of "Faster" an album that blends great classic rock songs and modern, youthful energy and technology.
Ken will tell you that he is a first and foremost a writer/composer/lyricist and his enormous history of world-wide hit records is testimony to this, as is his history of world-wide sales of over 40 million records. Ken Hensley is a rock & roll legend with no plans to stop.
Ron 'Bumblefoot' Thal (born September 25, 1969) is an award-winning vocalist, songwriter, producer, and world-renowned guitar virtuoso, with over 25 years of releasing music, playing international festivals and headlining tours, and gracing magazine covers as a solo artist.

Since 2006, Ron Thal officially joined Guns N’ Roses, filling the position vacated by guitarist Buckethead. He made his live debut with the band at the Hammerstein Ballroom in New York City on May 12, 2006. They toured sold-out shows all over the world, headlining festivals with crowds up to 150,000 audience everynight. Bumblefoot's unique 'fretless guitar' can be heard throughout Guns N' Roses' 2008 Chinese Democracy album.
In 2015, he released an album with his new band rock groups Art Of Anarchy, including Creed vocalist Scott Stapp and Disturbed  bassist John Moyer. In August 2017, he joined a progressive metal supergroup named Sons of Apollo with bassist Billy Sheehan, keyboardist Derek Sherinian vocalist Jeff Scott Soto and drummer Mike Portnoy. To date, they have released one album, entitled Psychotic Symphony.
On 2 April 2019, it was announced that Bumblefoot had joined Asia band (Geoff Downes, Carl Palmer, and Billy Sherwood) as lead vocalist and guitarist and that he would debut as part of the band's touring lineup in tribute to John Wetton during "The Royal Affair Tour 2019-2020"

and many more to be announced….