an attempt to earn a professional recording deal. The demo attracted the attention of Leviathan Records, but activity was put on hold when Gus was hired by Nightrage, Dream Evil, and Mystic Prophecy. After the release of these bands' debut albums, Gus's attention returned to his band, Firewind. The band has released seven studio albums to date and has gone through many lineup changes. Gus G was declared third of the three best guitar players all over the world in 2003 by the Japanese magazine BURRN!. In July 2005, he temporarily replaced Christopher Amott as guitarist of melodic death metal band Arch Enemy on their Ozzfest dates, and also contributed to their album Doomsday Machine by playing lead guitar on the song "Taking Back my Soul". He has made guest appearances for various artists, including the title track song on Rob Rock's Garden of Chaos, as well as solos on the songs "Felonies of the Christian Art" and "Life Deprived" by Old Man's Child's album In Defiance of Existence. Gus has also performed a few solos on the album Gallows Gallery by the Japanese avant-garde black metal band Sigh). In 2009, Gus was sent an email invitation from Ozzy Osbourne's management to learn several songs and take a flight to Los Angeles to audition for the role of guitarist in Ozzy Osbourne's backing band. After jamming with the band, Gus was "asked on the spot to come back and perform a concert with Ozzy a couple of months later". Soon thereafter it was announced that Gus G would be taking the place of lead guitarist for Ozzy Osbourne. Ozzy had decided to part ways with longtime guitarist Zakk Wylde, because he thought his music was beginning to sound too much like Zakk's band Black Label Society. Gus's first live appearance with Ozzy was at the BlizzCon 2009. In 2010 Gus G appeared alongside Firewind in Issue 3 of the Eternal Descent Comic Book which is an epic comic series that features characters of several of ESP Guitars' most popular artists. In the Summer of 2012 he toured with Ozzy Osbourne as part of the Ozzy & Friends European Tour. The line-up featured special guests Slash, Zakk Wylde, and Geezer Butler. He then returned to his band Firewind, and they released their 7th studio album "Few Against Many". The world tour that followed took them all over Europe, UK, North America,