Kryptonite is a fictional material from the Superman mythos — the ore form of a radioactive element from Superman's home planet of Krypton. It is famous for being the ultimate natural weakness of Superman and most other Kryptonians, and the word Kryptonite has since become synonymous with an Achilles' heel —the one weakness of an otherwise invulnerable hero.

Originating in the Superman radio show series, the material is usually shown as having been created from the radioactive remains of Superman's native planet Krypton, and generally has detrimental effects on Superman and other Kryptonians. The name "kryptonite" covers a variety of forms of the substance, but usually refers to the most common "green" form.

A forerunner of the kryptonite concept was the unpublished 1940 story "The K-Metal from Krypton", by Superman co-creator Jerry Siegel. The K-metal in the story was a piece of Krypton which robbed Superman of his strength while giving humans superhuman powers, a plot point which decades later made its way into the TV series Smallville. Jerry Siegel also stated that the naming of the planet Krypton was taken from the element Krypton due to the common denominators of high density and viscosity between the two.^{[citation needed]}

The Opposites are a Dutch rap duo. The duo consists of the rappers Willem de Bruijn (Willy) and Twan van Steenhoven (Big2). The two rappers started rapping when Willem de Bruijn had to make a rap for his teacher as a punishment. Willem noticed he had a talent for rapping and decided to go on with rapping, together with his pall Twan van Steenhoven they became addicted to Hiphop so they say. The name The Opposites comes from the fact that Willem is black and small and Twan big and white.

Via a demo contest on internet the duo gets in touch with Mastermind Records which wants to make a follow up on the very populair album: Streetremixes from D-men. The duo has a part in both Streetremixes 2 and 3 along with other later famous Dutch rappers like: Yes-r, Brace, Lange frans and Baas B. The debute album is called "Youngsters" and is rapped in English but the duo doesn't like that and after "youngsters" they decide to rap in their native language: Dutch. The duo makes a mixtape "Vuur" which can be downloaded on internet for free, this mixtape even reaches the Dutch radio. The Opposites want to make a studio album and to do this they switch to the record label TopNotch. The same year the duo makes real name with their coöperation on the hitsingle Wat Wil Je Doen from The Partysquad and their own single Fok Jou from their then still unreleased album De Fik Erin. Their album De Fik Erin is released in late 2005 and the second single from this albumis released in early 2006: Slaap. Slaap is The Opposites first big hit it reaches number one on the Dutch popcharts.

Antwan André Patton (born February 1, 1975), better known by his stage name Big Boi, is an American rapper, song-writer, record producer and actor, best known for being a member of American hip hop duo OutKast alongside André 3000. His work in the duo has produced six studio albums. During the duo's hiatus, he and André 3000 each announced plans to release a solo album. Big Boi's solo debut Sir Lucious Left Foot: The Son of Chico Dusty was released in July 2010 to respectable sales and critical acclaim.

Patton was born and spent the first half of his childhood in Savannah, Georgia, attending Herschel V. Jenkins High School before moving to Atlanta with his Aunt Renne. Eventually he decided to pursue his interest in music at Tri-Cities High School, a Visual and Performing Arts Magnet School.

He had a strong interest in hip-hop music, and met André "3000" Benjamin while attending Tri Cities High School in the early-1990s. The two eventually joined forces as OutKast and signed with LaFace Records.

Michael Render (born April 20, 1975), better known by his stage name Killer Mike, is an American rapper, signed to Grind Time Official through the SMC/Fontana Distribution. He made his debut on "Snappin' and Trappin'" on OutKast's 2000 LP Stankonia, and also appeared on the Grammy-winning song, "The Whole World", the single from OutKast's greatest hits album Big Boi and Dre Present...OutKast. He was featured in the movies 20 Funerals, Idlewild, and ATL.

Killer Mike released his debut album, Monster, in 2003. The album's lead single was "Akshon (Yeah!)", which featured rap group OutKast on guest vocals, and was included on the soundtrack to the 2004 version of EA Sports popular video game Madden NFL. He even made a Madden '04 remix of "Akshon (Yeah!)" for the game. The album's second single was "A.D.I.D.A.S.", featuring Big Boi and Sleepy Brown, which peaked at #60 on the Billboard Hot 100. It is Killer Mike's highest charting single to date as a lead artist. The song's title was an acronym for "All day I dream about sex". Following the release of his own material, he appeared on "Flip Flop Rock" and "Bust" on the Speakerboxx half of Speakerboxxx/The Love Below. He also appeared on "Southern Takeover" with Pastor Troy on Chamillionaire's CD The Sound of Revenge. Killer Mike appeared on the song "Never Scared" by fellow rapper Bone Crusher, also with T.I., from AttenCHUN! It peaked at #26 on the Hot 100, becoming Mike's first top 40 hit. The song was also used on the Madden NFL 04 game and even by the Atlanta Braves for their 2003 season. His second album Ghetto Extraordinary has had its release date pushed back several times due to disputes between Big Boi and Sony Records.

Gabriel J. Iglecias (born July 15, 1976), known professionally as Gabriel Iglesias, is an American standup comedian and actor, known for his shows I'm Not Fat… I’m Fluffy and Hot & Fluffy. He employs storytelling, effected voices and sound effects in his act, whose other trademarks include references to his weight and his use of Hawaiian shirts. He has been called a "comedy genius" by Hector Saldaña of the San Antonio Express-News.

Gabriel Iglesias was born Gabriel J. Iglecias in San Diego, California. He is of Mexican-American heritage. His mother placed a letter "c" in his surname in retaliation for his father's absence during his birth, though he does not use this spelling in his every day life, preferring to use the one with the "s". He and his mother lived in Riverside, Corona, Santa Ana, Baldwin Park and Compton before settling in Long Beach, where Iglesias spent most of his life growing up.

Before going into comedy, Iglesias worked for a cell phone company in Los Angeles. Although his family urged him to remain in that job for its financial security, he insisted on trying his hand at comedy. When maintaining both occupations proved too difficult to handle, he decided to take the risk of doing comedy full time, against the advice of his mother, who cautioned him against such a move. Iglesias nonetheless left the phone company, which eventually resulted in his being evicted from his home and losing his car. Despite this, he persisted with comedy.