42 is not the only answer!!!

At 'X's last Ozzfest performance, on August 20, 2005 at the Hyundai Pavilion at Glen Helen in San Bernardino, California, several negative events took place. During the first song, several members of the crowd, brought on by Sharon Osbourne, bombarded 'X' with eggs, bottle caps and ice. During three of 'X's songs, the P.A. system was switched off, cutting power to vocalist 'Y's microphone and then to all the band's instruments. During the concert, 'Y' can be heard accusing the festival's organizers of deliberately cutting off the band's power. On 'X’s departure, Sharon Osbourne came on stage to make a few statements, telling the audience that she "absolutely loved X" but thought that the lead singer Y was a prick."

Identify 'X'...

'X'-Iron Maiden

'X' is an american guitarist most widely known for his tenure as lead/rhythm guitarist of band 'Y'. 'X' has resided in Shinjuku,Tokyo,Japan since 2003 and has hosted his own television programs Rock Fujiyama and Jukebox English on Japanese television. In digital dream door, he was ranked #45 (100 greatest Rock Guitarist) and ranked #7 (100 greatest Metal Guitarist ) and his Solo in the song 'Z' ranks #4 (100 greatest Metal Solos ). 'X' is known for his unorthodox right hand picking technique and is known for his improvisation and for fusing an Eastern musical feel with Western musical styles, such as neo-classical, thrash metal and later into progressive rock. 'X' contributed to the 2009 video game Sonic and the Black Knight, playing lead guitar on the final boss theme, "With Me".

Identify 'X' & 'Y'....

'X'-Marty Friedman,'Y'-Megadeth

'X' is a fictional character and the main protagonist of the 'Y' series. 'X' is a combination spy, special operations agent and mercenary of FOXHOUND, a fictional black operations and espionage unit. He is repeatedly tasked with disarming and destroying the latest incarnation of 'Y', a bipedal nuclear weapon-armed ______. Japanese voice actor Akio Ōtsuka voices 'X' in Japanese, while actor and screenwriter David Hayter provides the English voice of the character.

Identify 'X' & 'Y'....

'X'-Snake,'Y'-Metal gear

In 1992, 'X' became involved in the creation of Wired magazine as the first investor. From 1993 to 1998, he contributed a monthly column to the magazine in which he reiterated a basic theme: "Move bits, not atoms". 'X' expanded many of the ideas from his Wired columns into a bestselling book 'Y'(1995), which made famous his forecasts on how the interactive world, the entertainment world and the information world would eventually merge. In November 2005, at the World Summit on the Information Society held in Tunis, 'X' unveiled a laptop which cost just 100$.

Identify 'X' and 'Y'...

'X'-Nicholas Negroponte,'Y'-Being Digital