Question: What American Hip Hop group released its sixth lead single "Symphony 2000", from the album "Out of Business"?

<P0-S0>  The group's name is a concatenation of the members' names "E" and "PMD" or an acronym for "Erick and Parrish Making Dollars", referencing its members, emcees Erick Sermon ("E" a.k.a. E Double) and Parrish Smith ("PMD" a.k.a. Parrish Mic Doc). <P0-S1>  During an interview on college radio station WHOV in 1987, Parrish Smith stated that the name evolved from the original: "We were originally known as "EEPMD" (Easy Erick and Parrish the Microphone Doctor), but chose to go with EPMD because it was easier to say." <P0-S2> EPMD is an American Hip Hop group from Brentwood, New York. <P0-S3>  He also stated that they dropped the two "E's" because N.W.A.'s Eric Wright was already using "Eazy-E" as his stage name. <P0-S4>  The group has been active for 31 years (minus two breakups in 1993 and 1999), and is one of the most prominent acts in east coast hip hop. <P0-S5>  DJ K La Boss and DJ Scratch were DJs for the group and their current DJ is DJ Diamond J <SEP> <P1-S0> Warp 9, a science fiction themed electro-funk and hip hop trio, best known for their influential singles "Nunk," "Light Years Away," and "Beat Wave," ranks among the most iconic groups of the electro hip hop era. <P1-S1>  Described as the "perfect instance of hip hop's contemporary ramifications," Warp 9 was the brainchild of writer-producers Lotti Golden and Richard Scher. <P1-S2>  The duo wrote and recorded under the moniker Warp 9, a production project at the forefront of the electro movement. <P1-S3>  Warp 9 evolved from a studio concept into a band when Prism Records expressed interest in releasing Nunk as a single. <P1-S4>  Golden & Scher invited drummer Chuck Wansley and percussionist Boe Brown to perform the male vocals and rhymes. <P1-S5>  Later, a female vocalist was added to the group; Ada Dyre performed vocals and rhymes for Warp 9's second single, "Light Years Away." <P1-S6>  The group released two albums, "It's a Beat Wave" (1983), (Island Records), a street themed testament exploring the topics of science fiction, hip hop and mixing, and "Fade In, Fade Out" (Motown), (1986), a soul R&B oriented montage. <P1-S7>  Warp 9's image is best described on the cover of their 12" single "Light Years Away," with Milton (Boe) Brown (Warp 9's lead singer), Chuck Wansley and session singer Ada Dyer in their trademark sci-fi space suits. <SEP> <P2-S0> "Symphony 2000" is the lead single released from EPMD's sixth album, "Out of Business". <P2-S1>  The song was produced by Erick Sermon and featured verses from EPMD's labelmates, Method Man & Redman and Lady Luck. <P2-S2>  "Symphony 2000" was EPMD's last charting single making it to the R&B and rap charts. <SEP> <P3-S0> "Rattling the Keys to the Kingdom" is a single by Australian hip hop group Hilltop Hoods. <P3-S1>  The song is the fourth official single from their sixth album Drinking From the Sun. <P3-S2>  The song was announced to be the fourth single on 14 September through their official website and Facebook by posting the artwork of the single. <P3-S3>  They announced that the single will be released on 21 September. <P3-S4>  They also said that there was something big happening with Australian hip hop and that there will be more announced on the same date as the single is released. <P3-S5>  On the artwork there are Australian hip hop artist logos, tags and Australian hip hop labels logos which are put together to form a crown.