Guest vocalists on the album include Grace Jones, Chris Brown, Lil Wayne, Skylar Grey, Drake, Justin Timberlake, Nicki Minaj, T.I., Wiz Khalifa, Swizz Beatz, Trey Songz, Rick Ross, Usher, Sevyn Streeter, James Fauntleroy, Bilal and The Notorious B.I.G.

The album also features vocal segues from designers and editors of the fashion world, including Vogue editor-in-chief Anna Wintour and Tommy Hilfiger.

Last Train to Paris was generally praised by critics, who commended the addition of Richard and Harper to help Diddy innovate a new sound.

[6] Diddy says the sound of this album was influenced by "being in the dance music world and doing stuff with Felix da Housecat, Erick Morillo, Deep Dish, DJ Hell and being in Ibiza and DC10.

He told Alex da Kid, who produced "Coming Home", "I want a beat that makes me feel like a white man in a basement in Atlanta."

The genesis of Last Train to Paris is full of odd stories involving our hero, ensconced in a darkened studio, barking batty ideas to his production team.

Dirty Money was formed when Diddy asked former Danity Kane member Dawn Richard, and singer-songwriter Kalenna Harper to perform alongside him on the album.

"[16] Simon Vozick-Levinson from Entertainment Weekly described the group's role on the album as "fleshing out Last Train's skeletal storyline, playing jealous lovers, disappointed partners, and commanding divas to his conflicted playboy.

"[1] Jim Farber of New York Daily News said that Dirty Money "sing loudly, often and well -- a good thing", on the disk.

[17] Henry Yanney of Soulculture said that Last Train to Paris was vocally-led Harper and Richard, who give the album "attitude and style".

He said "the duo sing harmoniously and break into solos with much precision and pace, remaining in sync at all times with the abrasive club influenced beats on hand.

"[18] David Jeffries said that at times Dirty Money came off as "fine background singers or part of Diddy’s Fashion Week posse.

"[2] Matt Sayles disagreed, stating that on the record, "Diddy takes a backseat" which allowed "Kaleena and Dawn to do a lot of the heavy lifting (and breathing) on a wide range of songs.

[22][23] Richard told MTV News that the album had been in the making before she and Harper joined Diddy to form Dirty Money.

[6] Simon Vozick-Levinson of Entertainment Weekly said the role of the guests on the album "[mainly] assorted suave fellows... help fill out [Diddy]'s side of the conversation.

Among those set to feature on the album are Isaac Mizrahi, André Leon Talley, Zac Posen, Marc Jacobs, Anna Wintour (editor in chief at Vogue) and Tommy Hilfiger.

[6] Talley said of his involved in the album, "[Diddy]'s like great creative thinkers in music who love fashion; swooner Marvin Gaye in his duets with Tammi Terrell comes to mind — what sense of elegance, what Motown glamour!

[25] On December 5, 2010, Diddy released The Prelude - Last Train to Paris, a free mixtape of seven songs from the upcoming album exclusively through Vogue.com.

"[44] A separate music video was filmed for a remix for "Angels", featuring Rick Ross instead of The Notorious B.I.G., premiered on March 2, 2010, with Parris serving as the director.

[56] Tilley has also directed the video for an amended version "Your Love" which features Trey Songz and Rick Ross, which was released on March 30, 2011.

The final figure sold was, in Billboard's own words, "rather larger than initial forecasts",[58] which put the album at around number 15, with 60,000 - 70,000 copies.

[59] Despite beating the expectations, the Last Train to Paris underperformed against Diddy's previous album, Press Play (2006), which debuted at number one, with 170,000 copies sold.

He pointed out that the album takes on a Eurodance sound and although people might see it as "leaping on that bandwagon but as it turns out, the milieu proves a much better fit for his, er, talents, than any CD he has released so far."

"[17] Andy Gill of The Independent noted Dirty Money's "emphasis on emotion over purely dance imperatives" and dubbed the album "easily the best work Diddy's been involved with in his entire career.

"[66] David Jeffries from AllMusic noted Diddy's "unfiltered self" and "unique attitude", stating "This hook-filled, vibrant effort is that rare heartbreak album that can speak on a lovelorn level and then put a little strut back in your step.

"[2] Matt Sayles from The Boston Globe complimented its concept and praised the mixture of R&B vocals from Dirty Money and the guest features from the range of A-list friends, particularly Grace Jones stating that "There’s no telling why she turns up but she sounds right at home on the thumping club anthem.

Every song is full of swift change-ups and jarring musical detours; Diddy often interrupts these jagged dance tracks to emote... Its lots of fun, and though confessional in parts, its overall far from the self-serious, petulant complaint-raps of say, Drake or Kanye.

"[9] Nitsuh Abebe from New York magazine said "Last Train to Paris is one of the first records that's really made me feel like [Diddy] sounds clever.

[However he] makes what seems to me to be an aesthetic error, which is that if you want to put sleek, rainy-sounding synths everywhere ... [But] this album hits its mood right, though — gray skies, Eurorail, and drama — its excellent stuff.

"[73] In 2023, Diddy said the reception of the album put him in a funk, and music wasn't resonating with him like it used to: "When Last Train to Paris came out, it kind of broke my heart because people didn’t understand it right away.