"Hit 'Em Up" is a diss song by rap artist 2Pac featuring his group the Outlawz.
 It is the B-side to the single "How Do U Want It", released on June 4, 1996.
 The song’s lyrics contain vicious insults to several East Coast rappers, chief among them, Shakur's former friend turned rival, The Notorious B.I.G., also known as Biggie Smalls.
 The song was recorded in Los Angeles, California at Can Am Studios in May 1996.
 Reporter Chuck Philips, who interviewed Shakur at Can Am, described the song as "a caustic anti-East Coast crusade in which the rapper threatens to eliminate Biggie, Sean Combs (Puffy), and a slew of Bad Boy artists and other New York acts."
 The song was produced by long-time collaborator Johnny "J" and samples the bassline from "Don't Look Any Further" by Dennis Edwards and interpolates "Get Money" by Biggie Smalls group Junior M.A.F.I.A., which used the Dennis Edwards sample as well.
 The song's chorus contains an interpolation of Yellowman's 1982 hit reggae single 'Zungguzungguguzungguzeng'.
 The video, itself described as infamous, includes impersonations of Biggie, Puffy and Lil' Kim.
"Das Urteil" (German for "The judgment") is a diss track by German rapper Kool Savas, against his former partner Eko Fresh.
 The diss was a response to Eko Fresh's track "Die Abrechnung".
 The track was offered as a free download on the website MZEE.com and downloaded 100,000 times, becoming the best known diss track in Germany.
Timothy Blair (January 3, 1967 – February 14, 2013), better known by his stage name Tim Dog, was an American rapper from the Bronx, New York, who rose to prominence during the early 1990s with his debut LP "Penicillin on Wax" and the celebrated diss track "Fuck Compton."
 Tim had already appeared on songs with the Ultramagnetic MCs and went on to form a duo, Ultra with member Kool Keith.
 "Fuck Compton" appeared in "XXL" magazine's "Top 25 Diss Tracks of All Time" and earned Tim Dog critical acclaim from progressive hip-hop producer Blockhead, who said Tim Dog's "The Dog's Gonna Getcha" (off "Penicillin On Wax") is "quite possibly the hardest song ever made."
The Human Technology EP is an extended play released by trance DJ BT in 2005 under the Human Imprint label.
 It contains two remixes of two different songs from BT's fourth studio album, "Emotional Technology".
 The two songs remixed were "Knowledge of Self", a track featuring the Gang Starr rapper Guru, and "The Great Escape", a track featuring Caroline Lavelle, with remixes by Evol Intent and Alliance, respectively.
 It is BT's fifth EP and most recent to date.
A diss track or diss song is a song primarily intended to disrespect people.
 While musical parodies and attacks have always existed, the trend became increasingly common in the hip hop genre fueled by the hip hop rivalry phenomenon.
"No Problems" is a song released by American rapper Azealia Banks.
 It is a diss track aimed at American rapper Angel Haze.
 It was released on January 4, 2013, by Banks herself, after Angel Haze released a diss track titled, "On The Edge", a day prior.
 Production of the song was handled by American producer, Machinedrum.
"Shether" is a song released by American rapper Remy Ma.
 It is a diss track aimed at American rapper Nicki Minaj.
 It was released on February 25, 2017, by Empire Distribution.
 The song's beat is lifted from the diss track "Ether" by Nas.
"No Hacen Na" "(English: They Don't Do Anything)" is a song by Puerto Rican reggaetón recording artist Ivy Queen, from her second compilation album, "" (2006).
 It was composed by Queen, produced by Filtro Musik.
 Forced to release an album with her then-husband who she was going through a divorce at the time due to their multi-album contract with Univision, the song was released as a promotional single on June 10, 2006.
 Lyrically the song is telling people that she is ready whenever they are and that isn't scared.
 Ivy Queen performed the song on a live edition of the Puerto Rican television program "Sábado Gigante".
 The song was believed to be a diss track towards reggaeton hip-hop artist Temperamento and La Nina who released a diss track toward Queen that resembled the lyrics of "Quiero Bailar".
 Many artist have covered this song including Angel & Khriz and Arcángel.
Perfection is the 1996 debut album by Long Beach, California rap group Foesum.
 A limited edition version was later released in 2002, with a bonus track on it titled "Let 'Em Understand Perfection" featuring Snoop Dogg and an alternate cover.
 It was said that the bonus track is a diss track towards fellow Long Beach rapper Domino.
Hell on Earth is the third studio album by East Coast hip hop group Mobb Deep, which was first released on November 19, 1996, on Loud/RCA/BMG Records.
 The album is largely a continuation of Mobb Deep's previous album, the critically acclaimed "The Infamous".
 The album is produced by Mobb Deep and also features guest appearances by emcees Nas, Raekwon, Method Man, and frequent collaborator Big Noyd.
 The album stands out for its acclaimed singles "G.O.D. Pt.
 III" and "Hell on Earth (Front Lines)," as well as "Drop a Gem on 'Em," a response to 2Pac's diss track "Hit 'Em Up."
 A promotional single, "Still Shinin'", was released earlier that year and later added to the album.
 The album, one of the earliest enhanced CDs, also contains an additional track ("In the Long Run") that at the time, had to be unlocked with the use of a computer.

Question: Hell on Earth included a diss track featuring what band?
Answer: Outlawz