Question: What group, founded by Suffa and MC Pressure, contributed to Drapht's Who Am I album?
Context: Hilltop Hoods are an Australian hip hop group that formed in 1994 in Blackwood, Adelaide, South Australia.  The group was founded by Suffa (Matthew David Lambert) and MC Pressure (Daniel Howe Smith), who were joined by DJ Debris (Barry John M. Francis) after fellow founder, DJ Next (Ben John Hare), left in 1999.  The group released its first extended play, "Back Once Again", in 1997 and have subsequently released seven studio albums, two "restrung" albums and three DVDs. Pale Rider is the debut full-length album from Western Australian hip hop artist, Drapht.  It was released in October 2003 through Australian Hip Hop label, Syllabolix Records.  The album features contributions by MC Layla, Dazastah, Optamus and Hunter.  Tracks were produced by Dazastah, Optamus or Fdel.  Matt Unicomb in 3D World describes the album as being "one of Western Australia's defining hip hop achievements." Pressure Drop is the second solo album by Robert Palmer, released in 1975.  Palmer is backed by Little Feat and other musicians.  The title track is a cover version of the reggae hit by Toots & the Maytals.  However, many other songs on the album use "New Orleans funk ... along with smooth, dated disco ballads smothered in strings".  Continuing his association with Little Feat started by his cover of "Sailing Shoes" on his 1974 debut album "Sneaking Sally Through the Alley", Feat was used as backing band on several cuts, most notably Lowell George's slide guitar on "Here With You Tonight".  George also contributed the tune "Trouble" on which Feat pianist Bill Payne plays the intro.  David Jeffries' review says that the album is considered "too blue-eyed and polished for fans of Palmer's more gutsy moments" but concludes that ""Pressure Drop" has grown into the great overlooked album in Palmer's discography". Who Am I is the second full-length album from Western Australian hip hop artist, Drapht.  It was released in June 2005 through Australian Hip Hop label, Obese Records.  It was released in both in a CD and a limited 2 LP vinyl format.  The album features contributions by MC Layla, Dazastah (Downsyde) and Pressure (Hilltop Hoods).  Two songs from the album, "Drink Drank Drunk" and "The Music", received airplay on community radio stations and national youth broadcaster, Triple J, and featured on national music video show, "rage".  "The Music" samples Living Jazz's version of "Walk On By" and was selected by Triple J as a featured track for Ausmusic month in 2005.  The album has subsequently been included in the National Film and Sound Archive (NFSA) as part of "The Art of Sound", a collaborative project between the NFSA and selected regional art galleries, which examines the intersections between sound and the visual arts. Quro (born Andrew Michael Bradley) is an Australian hip hop MC from Adelaide, South Australia who later relocated to Sydney.  He has been involved in the Australian hip hop scene since about 1992, when he formed part of the legendary Adelaide hip hop group Finger Lickin Good with MC Madcap.  Quro, as Andrew Bradley, has also worked on radio and as a journalist.  He also contributed a verse on the Def Wish Cast track "Saga (Iron Fist)" from their debut LP "Knights of the Underground Table". A Tribe Called Quest was an American hip-hop collective formed in 1985 and originally composed of MC and main producer Q-Tip, MC Phife Dawg, DJ and co-producer Ali Shaheed Muhammad and MC Jarobi White, who left the group in 1991 after the release of their debut album.  White continued to contribute to the band sporadically before rejoining for their 2006 reunion.  Along with De La Soul, the group was a central part of the Native Tongues, and enjoyed the most commercial success out of all the groups to emerge from that collective.  The group released six albums between 1990 and 2016.  The band broke up in 1998 after releasing their fifth album.  In 2006, the group reunited and toured the United States.  In 2016, they released their sixth and final album, which was still incomplete when Phife Dawg died suddenly in March 2016, and was completed by the other members after his death. Layla Rose Hanbury (born 5 October 1982), known mononymously as Layla, is an Australian hip hop singer-songwriter and MC from Perth.  In January 2005 she released her debut solo album, "Heretik", on Obese Records.  She is a member of Syllabolix (SBX) Crew, with other MCs including her husband, Dazastah (aka Darren Reutens).  The couple also perform as Layla and Dazastah.  During September and October 2011 the duo were a support act for another SBX artist, Drapht, on his Australia-wide Party Party Party Tour. Rotterdam Terror Corps, often abbreviated RTC, is a Dutch gabber act formed in 1993.  Originally formed by five Dutch DJs (DJ Distortion, MC Raw, DJ Reanimator, DJ Petrov, and DJ Rob), currently there is only one of the original DJs left, namely DJ Distortion.  DJ Petrov and DJ Rob left to pursue individual work.  Reanimator (Patrick Moerland) produced the first album and left twice, the second time in 1995 permanently after an argument with DJ Distortion.  In 2002 MC Raw was replaced by Cyriel Brandon, better known by his stage name "RTSier", due to health reasons.  RTSier is since that time the MC and live performer on stage.  The group has gained a notoriety for its use of eroticism, with each live performance containing female strippers and pyrotechnics.  After MC Raw was replaced, he was still able to perform occasionally. An album released by Australian hip hop artist MC Pegz on 15 October 2007.  This recording features appearances from Australian MCs Drapht, Funkoars, Muph, Vents and others.  Californian MC Planet Asia also collaborates on the track "Diligent Music".  It peaked at No. 70 on the ARIA Album Chart, No. 10 on the ARIA Urban Album Chart and No. 4 on the ARIA Hitseekers Albums chart.  The albums tracks were featured on national radio station, Triple J.  According to Khalil Hegarty of "The Age" declared that Pegz "has made the Australian hip-hop scene his own."  During 2008 he toured Australia to promote the album. Matthew David Lambert (born 6 May 1977), better known by his stage name Suffa, is one of the MCs of the Adelaide, Australia, hip hop group Hilltop Hoods.  Suffa is also a producer and has produced tracks for other artists, such as Funkoars and Kate Miller-Heidke, in addition to his work with the Hilltop Hoods.  Lambert has been an active artist for over 15 years since the release of the debut Hilltop Hoods album.
Answer: Hilltop Hoods