Mark Howard James (October 16, 1961 – October 19, 2023), professionally known as The 45 King and also known as DJ Mark the 45 King,^[3] was an American hip hop producer and DJ from The Bronx, New York. He began DJing in the mid-1980s. His pseudonym, the 45 King, came from his ability to make beats using obscure 45 RPM records.

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In November 1989, the re-release of "The King is Here" / "The 900 Number" peaked at #60 in the UK Singles Chart, his only appearance in a UK chart.^[4]

In the early 1990s, drug addiction caused him to lose a production deal that he signed with Warner Bros. Records.^[5]

In July 1990, Manchester-born DJ Chad Jackson sampled "The 900 Number" on his single "Hear the Drummer (Get Wicked)", which reached #3 in the UK Singles Chart.^[6]

In 1996, Washington, D.C.-based go-go artist DJ Kool had a hit with the song "Let Me Clear My Throat". It was call-and-response vocals over a chopped half of the "900 Number" beat. DJ Kool did not just sample the track: he also acknowledged the 45 King as the song's originator.^[7]

In 1998, the 45 King produced "Hard Knock Life (Ghetto Anthem)" for Jay-Z. The song was a hit and featured a looped chorus from the original cast album of the Broadway musical Annie. In an interview, Jay-Z spoke on the 45 King's importance to hip hop and called him a true pioneer of the business.^[8]

Following the success of Hard Knock Life, the 45 King heard the Dido song "Thank You" in the 1998 film Sliding Doors. He looped the sample and added a bassline, then sent the result to Interscope Records. The recording was later used for the Eminem song "Stan", as the rapper interpreted Dido's lyrics as being about stalking.^[9]

The 45 King died on October 19, 2023, at the age of 62.^[10]

• Chill Rob G – F.U. (Rockin Wit The Best) (featuring Double J, God Lakim, The 45 King) – SpitSLAM Record Label Group, 2022^[11]
• Ghostface Killah – Blood in the Streets (featuring AZ) – Tommy Boy, 2014^[12]
• Fatlip – The Bass Line – Delicious Vinyl, 2005^[13]
• Fatlip – I Got The Shit – Delicious Vinyl, 2005^[13]
• Fatlip – M.I.A. – Delicious Vinyl, 2005^[13]
• Diamond D – U Don't Owe Me – Dymond Mine Records, 2005^[14]
• King Gordy – Nobody Hates Nothin' - Web Entertainment, 2003^[15]
• Biz Markie – Turn Back the Hands of Time – Tommy Boy, 2003^[16]
• Craig Mack – The Wooden Horse – NY.LA Music, 2001^[17]
• Dyme – Ladies Are U Wit Me – Interscope Records, 2001^[18]
• Paula Perry – Y'all Chickens Make Me Laugh – Fully-Blown Recordings, 2000
• Big Scoob – Can Du – White Label, 2000
• Eminem – "Stan" – Aftermath/Interscope/Universal, 2000
• Various Artist Remixes – Rakim – Feeling You; Public Enemy – Bring the Noise, - White Label, 2000
• Rakim – How I Get Down – Universal Records, 1999
• Common Sense – Car Horn – Groove Attack, 1999
• Peanut Butter Wolf – Run the Line (Remix) – Stones Throw, 1998
• Jay-Z – "Hard Knock Life (Ghetto Anthem) – Roc-A-Fella/Def Jam/Universal, 1998
• Fanclub Erdberg – Anton Polster Du Bist Leiwand – Mego, 1997
• Queen Latifah – Name Callin' – Tommy Boy/Warner Bros., 1996
• C&C Music Factory – Do You Wanna Get Funky? (Remix) – Columbia/SME, 1994
• Ed Lover & Doctor Dré – Who's the Man – Relativity, 1994^[19]
• PMD – Thought I Lost My Spot – RCA/BMG, 1993
• Diamond D – Best Kept Secret (Remix), Check 1, 2 – Chemistry/Mercury/PolyGram, 1992
• Apache – Do Fa Self, Tommy Boy/Warner Bros., 1992
• Def Jef – Don't Sleep (Open Your Eyes) – Delicious Vinyl, 1991^[20]
• Positively...Practical Jokes – Atlantic, 1991
• MC Lyte – Big Bad Sister – First Priority Music/Atlantic, 1991^[21]
• MC Lyte – Kamikaze – First Priority Music/Atlantic, 1991^[21]
• MC Lyte – Like a Virgin – First Priority Music/Atlantic, 1991^[21]
• MC Lyte – Absolutely – First Priority Music/Atlantic, 1991^[21]
• Lisa Stansfield – "All Around the World" (Remix) – Arista/BMG, 1990
• Madonna – "Keep it Together" (Remix) – Sire/Warner Bros., 1990
• Maestro Fresh Wes – Drop the Needle (Remix) – LMR/RCA Records, 1990
• Lakim Shabazz – Lost Tribe of Shabazz (album) – Tuff City, 1990
• Eric B. & Rakim – "Let the Rhythm Hit 'Em" (Remix) – MCA, 1990
• Digital Underground – Packet Man (Remix) – Tommy Boy/Warner Bros., 1990
• Queen Latifah – Come Into My House (Mark 45 King Mix) – Tommy Boy/Warner Bros., 1990
• Markey Fresh – The Mack of Rap – Jive/RCA, 1989
• X-Clan – Heed The Word of the Brother – 4th & B'Way/Island/PolyGram, 1989
• Eric B. & Rakim – "Microphone Fiend" (Remix) – MCA, 1989
• Salt-N-Pepa – My Mic Sounds Nice (Remix) – Next Plateau/London/PolyGram, 1989
• Lord Alibaski – Lyrics in Motion / Top Gun – Tuff City, 1989
• King Sun – Fat Tape, It's A Heat Up – Zakia/Profile, 1989
• Chill Rob G – Ride the Rhythm (album) – Wild Pitch/EMI, 1989
• Gang Starr – Gusto, Knowledge – Wild Pitch/EMI, 1989
• Queen Latifah – All Hail the Queen (album) – Tommy Boy/Warner Bros., 1989
• Too Nice – Cold Facts (Remix) – Arista/BMG, 1989
• Double J – Bless the Funk – 4th & B'Way/Island/PolyGram, 1989
• Big Daddy Kane – Set It Off – Cold Chillin', 1988^[22]
• Chill Rob G – Chillin' – Wild Pitch/EMI, 1988
• Lakim Shabazz – Pure Righteousness (album) – Tuff City, 1988
• Gang Starr – Movin on, Gusto, Knowledge – Wild Pitch/EMI, 1988
• Latee – No Tricks, Wake Up – Wild Pitch/EMI, 1988
• Gang Starr – Movin' On, Bust a Move, To Be A Champion – Wild Pitch/EMI, 1987
• Latee – This Cut's Got Flavor, Puttin' On the Hits – Wild Pitch/EMI, 1987

• Westbound Beats^[23] – Westbound Records, 2023
• Back To The Beat Vol. 2^[24] – Redefinition Records, 2015
• Back To The Beat^[25] – Redefinition Records, 2014
• Scion A/V Remix Project^[26] – Scion Audio/Visual, 2008
• The Cat Jams^[27] – Tuff City, 2005
• Beats of the Month – Bronx Science, 2000/2001 (November, December, January, February, March, April, May volumes of "Lost Breakbeat" style beats)
• Beats for the New Millennium, Vol 1 & 2 – 45 King Records, 2000
• Put the Funk Out There – Rock-A-Fella, 1999
• Universal Beat Generation, Vol 1-3 – Ultimate Dilemma, 1998 (European label "The Lost Breakbeats" re-release)
• Breakapalooza Vol 1 & 2 – Tuff City, 1997
• Champain – Tuff City, 1997
• Beats Don't Fail Me Now (12" Single) – CLR Records, 1997
• Breakamania, Vol 1-3 – Real Tuff Breaks, 1997
• Grooves for a Quiet Storm – Tuff City, 1996
• Killer Beets, Vol 1-3 – Music Station, 1996
• Real Tuff Jazz – Tuff City, 1995
• Zig-a-Ziggin ZZ – Tuff City, 1995
• Straight Outta Da Crate, Vol 1-5 – Tuff City, 1993
• The Lost Breakbeats – 45 King Records, 1993–1996
• 45 Kingdom – Tuff City, 1990
• Rhythmical Madness (with DJ Louie Louie) – Tuff City, 1990
• On A Mission (from "One Voice: Pride") – Ruffhouse, 1990
• The 45 King Presents: The Flavor Unit – Tuff City, 1990^[28]
• Master of the Game – Tuff City, 1989
• The King is Here (with Markey Fresh) (12" Single) – Tuff City, 1989
• Red, Black, and Green (with Lakim Shabazz) (12" Single) – Tuff City, 1989
• When a Wise Man Speaks/Catching a 'Tude/Rocking With Tony H (12" Single) – Tuff City, 1989
• The 900 Number EP – Tuff City, 1987^[29]
• Funky Beats '84 – 45 King, 1984
• Just Beats – 45 King, 1987