『アップタウン・スペシャル』（UpTown Special.）は、マーク・ロンソンの4枚目のアルバム。2015年3月15日にRCA Records、Columbia Records、Sony Music Entertainmentより発売された。

概要 
前作「Record Collection」から5年ぶりのアルバム。先行シングル「Uptown Funk」は全米・全英チャート1位を獲得、全米チャートでは歴代2位タイの14週連続1位を記録。このアルバムは全英チャート1位を記録したものの、全米チャートでは5位にとどまるなど、シングルと比べると売り上げは振るわなかった。

Mark Ronsonはこのアルバムについて「聴いて良い気分になれるアルバムにしたかったんだ。自分が聴きたいアルバムに。パーティーアルバムなんだけど、その中に知性がある。素晴らしいシンガーを招いて、ビートがあって、ノリノリな曲が多い。だけど考えさせられる歌詞だったり、良い意味で期待を裏切るものがあるから、そこから知性を感じてほしいね」。

収録曲 
 Uptown's First Finale [1:38]
Produced by Mark Ronson, Jeff Bhasker
Additional Produced by Emile Haynie
(作詞・作曲：Mark Ronson, Jeff Bhasker, Michael Chabon)
客演にStevie WonderとAndrew Wyattが参加。この楽曲のメロディーを作ったときにStevieのハーモニカじゃなきゃダメだと思い、会ったこともないStevieのマネージャーに連絡したところ、レコーディングの許可を得たという。Markは曲作りにおいてStevieに影響を受けており、レコーディングの日は「人生最良の日だったよ」と振り返った。
 Summer Breaking [3:07]
Produced by Mark Ronson, Jeff Bhasker
Additional Produced by Emile Haynie
(作詞・作曲：Mark Ronson, Jeff Bhasker, Michael Chabon, Kevin Parker)
客演にKevin Parkerが参加。
 Feel Right [3:42]
Produced by Mark Ronson, Bruno Mars, Jeff Bhasker
Additional Produced by Boys Noize
(作詞・作曲：Mark Ronson, Bruno Mars, Brody Brown, Homer Steinweiss, Michael Tyler, Nick Movshon, Phillip Lawrence, Thomas Brenneck)
11thシングル「Uptown Funk」のCD盤に収録され、2015年3月29日にシングルカットされた。客演にMystikalが参加している。
 Uptown Funk [4:29]
Produced by Mark Ronson, Bruno Mars, Jeff Bhasker
(作詞・作曲：Mark Ronson, Bruno Mars, Jeff Bhasker, Phillip Lawrence, Nicholas Williams, Devon Gallaspy)
11thシングル。客演にBruno Marsが参加。
 I Can't Lose [3:16]
Produced by Mark Ronson, Jeff Bhasker
Additional Produced by Emile Haynie, DJ Zinc, TEED
(作詞・作曲：Mark Ronson, Jeff Bhasker, Michael Chabon)
客演にKeyone Starrが参加。このアルバムの中でMarkのお気に入りの曲。Keyoneはアメリカ南部をドライブしている途中で見つけたという。
 Daffodils [4:58]
Produced by Mark Ronson, Jeff Bhasker
Additional Produced by James Ford, Riton
(作詞・作曲：Kevin Parker, Michael Chabon)
客演にKevin Parkerが参加。制作前からKevinがギター・リフを作っており、そこから曲が広がった。
 Crack in the Pearl [2:25]
Produced by Mark Ronson, Jeff Bhasker
Additional Produced by Emile Haynie
(作詞・作曲：Mark Ronson, Jeff Bhasker, Michael Chabon)
客演にAndrew Wyattが参加。
 In Case of Fire [4:33]
Produced by Mark Ronson, Jeff Bhasker
(作詞・作曲：Mark Ronson, Jeff Bhasker, Michael Chabon, Alex Greenwald, Nick Movshon, Rufus Wainwright)
客演にJeff Bhaskerが参加。
 Leaving Los Feliz [4:18]
Produced by Mark Ronson, Jeff Bhasker
(作詞・作曲：Mark Ronson, Jeff Bhasker, Michael Chabon, Kevin Parker, Emile Haynie, Chris Vatalaro)
客演にKevin Parkerが参加。
 Heavy and Rolling [3:57]
Produced by Mark Ronson, Jeff Bhasker
Additional Produced by Emile Haynie
(作詞・作曲：Mark Ronson, Jeff Bhasker, Michael Chabon, Andrew Wyatt)
客演にAndrew Wyattが参加。
 Crack in the Pearl Pt. II [2:16]
Produced by Mark Ronson, Jeff Bhasker
(作詞・作曲：Mark Ronson, Jeff Bhasker, Michael Chabon)
客演に Stevie WonderとJeff Bhaskerが参加。

クレジット 
Uptown’s First Finale
 Mark Ronson：Guitar, Electric Bongos
 Andrew Wyatt：Lead Vocals
 Stevie Wonder：Harmonica
 Carlos Alomar：Guitar
 Teenie Hodges：Guitar
 Kevin Parker：Drums
 Jeff Bhasker：Keyboards, Backing Vocals
 Karl Vanden Bossche：Percussion
 Peter Cottontale：Additional Keyboards
 Geoff Zanelli：Synth Strings
 Nico Segal：Trumpet
 Keyone Starr：Backing Vocals
 Engineer：Mark Ronson, Boo Mitchell, Cristian F. Perez, Jeff Bhasker, Josh Blair, Rhys Downing
 Mixed by Tom Elmhirst
 Assisted Mixed by Joe Visciano
 Mastered by Tom Coyne

Summer Breaking
 Mark Ronson：Guitar, Keyboards, Percussion
 Kevin Parker：Vocals
 Willie Weeks：Bass
 Steve Jordan：Drums
 Jeff Bhasker：Keyboards, Backing Vocals
 Karl Vanden Bossche：Percussion
 Andrew Wyatt：Backing Vocals
 Engineer：Mark Ronson, Boo Mitchell, Jeff Bhasker, Josh Blair, Rhys Downing
 Mixed by Tom Elmhirst
 Assisted Mixed by Joe Visciano
 Mastered by Tom Coyne

Feel Right
 Mystikal：Vocals
 Bruno Mars：Guitar, Background Vocals
 Tommy Brenneck：Guitar
 Nick Movshon：Bass
 Homer Steinweiss：Drums
 Trombone Shorty：Trumpet, Trombone
 Daniel Oestreicher：Baritone Saxophone
 Timothy Kinzy McFatter：Tenor Saxophone
 Phillip Lawrence：Background Vocals
 Engineer：Mark Ronson, Boo Mitchell, Jeff Bhasker, Josh Blair, Rhys Downing, Tommy Brenneck
 Mixed by Tom Elmhirst
 Assisted Mixed by Joe Visciano
 Mastered by Tom Coyne

 Uptown Funk
 Mark Ronson：Guitar, Linn Drum, Programming
 Bruno Mars：Vocals, Drums
 Jamareo Artis：Bass
 Phred Brown：Additional Keyboards
 Dave Guy：Trumpet
 Jimmy King：Trumpet
 Michael Leonhart：Trumpet
 Kameron Whalum：Trombone
 Ray Mason：Trombone
 Ian Hendrixson-Smith：Baritone Saxophone
 Dwayne Dugger：Tenor Saxophone
 Neal Sugarman：Tenor Saxophone
 Engineer：Mark Ronson, Boo Mitchell, Charles Moniz, Inaam Haq, Josh Blair, Wayne Gordon
 Additional Engineer：Devin Nakao, Ken Lewis, Matthew Stevens, Riccardo Damian
 Mixed by Serban Ghenea
 Mixed (Engineer) by John Hanes
 Assisted Mixed by Joe Visciano
 Mastered by Tom Coyne

I Can’t Lose
 Mark Ronson：Guitar
 Keyone Starr：Vocals
 Carlos Alomar：Guitar
 Nick Movshon：Bass
 Homer Steinweiss：Drums
 Jeff Bhasker：Keyboards, Backing Vocals
 Daniel Oestreicher：Baritone Saxophone
 Timothy Kinzy McFatter：Tenor Saxophone
 Trombone Shorty：Trumpet, Trombone
 Candise Rayborn-Marshall：Background Vocals
 Jeanine Sharisse Norman：Background Vocals
 Shontelle Norman：Background Vocals
 Zane Lowe：Background Vocals
 Engineer：Mark Ronson, Boo Mitchell, Artie Smith, Jeff Bhasker, Tommy Brenneck
 Mixed by Serban Ghenea
 Mixed (Engineer) by John Hanes
 Assisted Mixed by Joe Visciano
 Mastered by Tom Coyne

Daffodils
 Mark Ronson：Keyboards, Percussion
 Kevin Parker：Vocals, Guitar, Bass, Keyboards
 Carlos Alomar：Guitar
 Kirin J Callinan：Guitar
 Steve Jordan：Silky Disco Hihat
 Jeff Bhasker：Keyboards
 James Ford：Keyboards, Analogue Sequence
 Riton：Analogue Sequence
 Engineer：Mark Ronson, Boo Mitchell, Artie Smith, James Ford, Jeff Bhasker, Josh Blair, Riccardo Damian
 Mixed by Tom Elmhirst
 Assisted Mixed by Joe Visciano
 Mastered by Tom Coyne

Crack In The Pearl
 Mark Ronson：Guitar, Electric Bongos
 Andrew Wyatt：Lead Vocals
 Carlos Alomar：Guitar
 Teenie Hodges：Guitar
 Kevin Parker：Drums
 Jeff Bhasker：Keyboards, Backing Vocals
 Peter Cottontale：Additional Keyboards
 Karl Vanden Bossche：Percussion
 Geoff Zanelli：Synth Strings
 Nico Segal：Trumpet
 Keyone Starr：Background Vocals
 Engineer：Mark Ronson, Boo Mitchell, Cristian F. Perez, Jeff Bhasker, Josh Blair, Rhys Downing
 Mixed by Tom Elmhirst
 Assisted Mixed by Joe Visciano
 Mastered by Randy Merrill

In Case Of Fire
 Mark Ronson：Guitar
 Jeff Bhasker：Vocals, Keyboards
 Tommy Brenneck：Guitar
 Nick Movshon：Bass
 Homer Steinweiss：Drums
 Candise Rayborn-Marshall：Background Vocals
 Jeanine Sharisse Norman：Background Vocals
 Shontelle Norman：Background Vocals
 Engineer：Mark Ronson, Boo Mitchell, Josh Blair
 Mixed by Tom Elmhirst
 Assisted Mixed by Joe Visciano
 Mastered by Tom Coyne

Leaving Los Feliz
 Mark Ronson：Guitar, Drum Programming
 Kevin Parker：Vocals, Keyboards
 Carlos Alomar：Guitar
 Jeff Bhasker：Keyboards, Backing Vocals
 Engineer：Mark Ronson, Boo Mitchell, Artie Smith, Jeff Bhasker
 Mixed by Tom Elmhirst
 Assisted Mixed by Joe Visciano
 Mastered by Tom Coyne

Heavy And Rolling
 Mark Ronson：Guitar
 Andrew Wyatt：Vocals, Programming, Backing Vocals
 Willie Weeks：Bass
 Steve Jordan：Drums
 Jeff Bhasker：Keyboards, Backing Vocals
 Karl Vanden Bossche：Percussion
 Kevin Parker：Backing Vocals
 Engineer：Mark Ronson, Boo Mitchell, Jeff Bhasker, Josh Blair
 Mixed by Tom Elmhirst
 Assisted Mixed by Joe Visciano
 Mastered by Tom Coyne

Crack In The Pearl, Pt. II
 Mark Ronson：Lead Guitar, Bass, Electric Bongos
 Jeff Bhasker：Lead Vocals, Synthesizer (Moog, Juno), Clavinet
 Stevie Wonder：Harmonica
 Carlos Alomar：Guitar
 Kevin Parker：Drums
 Andrew Wyatt：Backing Vocals
 Keyone Starr：Backing Vocals
 Engineer：Mark Ronson, Boo Mitchell, Cristian F. Perez, Jeff Bhasker, Joe Visciano, Josh Blair, Rhys Downing
 Mixed by Ben Baptie
 Assisted Mixed by Dakota Bowman
 Mastered by Tom Coyne