"Last Train to Paris," the long-anticipated sixth album from Diddy, now recording as part of Dirty Money, along with Dawn Richard and Kalenna, has been in development, in at least one form of another, for more than a year and a half. Now that it appears that the album will finally reach our hands on June 22, I thought that this would be a good time to take stock of the project and everything that we know about it.

Concept

"Last Train to Paris" is a conceptual album that centers around a love story. It's about "finding love, losing love and getting love back again," Dawn Richard told MTV News. Diddy shared the back story with MTV's Shaheem Reid. His character in the concept story meets a girl and they grow close. But, they separate after a misunderstanding.

"She just breaks out on a n****," Diddy told Reid. "But an absence makes the heart grow fonder. She's singing to me; I'm performing to her. We're in two different parts of the world. She's remembering all the good times, and I'm thinking about if I had another chance, I wouldn't f*** it up. So, I go on tour and I'm in London. I get a tip that she's in Paris, and it's 9:45 p.m. or something. It's one of the foggiest days in London, so I can't take my plane. I can't drive, the road is shut down. The only way I can get there is the last train to Paris, and it leaves in 20 minutes and I'm 15 minutes away. It's that whole intensity of what happens on the train ride - and will she be there when I get there - is something else you'll hear."

A short film will be included with the release, as part of the concept's strong visuals, according to Diddy, who also worked with photographer Terry Richardson in some capacity.

Musical Style

Diddy has described the album as "electro hip-hop soul funk," but notes that it is not "European dance/trance music." Ibiza's DC10 club served as one of the inspirations for the album because the music they play is "funky and soulful and hard," Diddy says.

"The influence comes from me 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 LAist. "Some of the programming to the music is influenced by that but it doesn't sound like dance music. I think maybe people take the "electro" word too far. It's really just a fusion and it's really just great music. It's innovative, it's new and it's refreshing."

The album is said to prominently feature the use of the vocoder, Auto-Tune or a flange. Diddy revealed that T-Pain had "taught him some tricks that nobody knows but him and myself."

Production

Diddy, The-Dream, Tricky Stewart, Rodney "Darkchild" Jerkins, The Hitmen, T-Pain, Mario Winans, The Neptunes, Deric "D-Dot" Angelettie, Rob Holladay, Yung Berg, D'Mile, Danja and The Surf Club have all been reported to have produced cuts for the album.

The-Dream referred to "Change," the record he wrote for the project, as "the best male record I've written. Probably the best record I've written overall."

"It's [going to be] one of the biggest I ever wrote," he told EW.com. "Diddy sang the record gracefully. He really pulled it off, and he really surprised me. Because it's Puff, nobody expects it. [But] he's got the goods''

T-Pain indicated that he's written 12 songs for the project, including "Let's Play a Game," which uses old board games as metaphors for a relationship. Diddy gave Pain a half of a royalty point on his album, in recognition of his contributions.

The album appears to have been notably influenced by Holladay. In September, Diddy said that he had produced half of "Last Train to Paris."

Featured Artists

Drake, T-Pain, Rick Ross, Lil' Wayne, The Notorious B.I.G. and T.I. will all be featured on the album. Jay-Z is "supposed to be" featured on the set and Diddy also hopes to have Janelle Monae.

"Hurt" featuring Drake leaked online in November, thanks to a Drake mixtape and was later reported to be featured on the album. Meanwhile, an unfinished version of "Strobe Lights" featuring Lil' Wayne leaked in January.

"Hello Good Morning," the latest single from the album, features T.I. for the U.S. version, but Diddy is looking for an artist from the U.K. to feature on the version for that country.

For guest artists on "Last Train to Paris," they are following a formula that integrates the artist into the song in a natural way.

"Everybody that's on the album, it's not done in a regular appearance way," Diddy told MTV News' Shaheem Reid. "It's done in a very unique way that's authentic. And it's not about a single or selling. It doesn't have that behind it. And I think the way Wayne's on this record called 'Strobe Lights,' and it's like one of the first records that I'm really hearing him talking about love and how love has affected him. And that's the type of things that I wanted to get out of people if they were on the album. I wanted them to get out of their comfort zone and do something that was special."

Other Collaborators

Whether in production, songwriting, guest appearances or general support, a number of other artists have been linked to the album. Among them, Kanye West, Timbaland, Jay Electronica, Rico Love, James Fauntleroy, Soul Diggaz, Seven Aurelius, Bad Boy rappers Aasim and Ness, former Bad Boy rapper G. Dep and DJ Prostyle.

In August, Diddy tweeted that G. Dep was "on the Last Train to Paris" and, in November, he told Vibe that Jay Electronica had contributed, too.

When asked what producers and artists were a part of the "Dirty Money movement," the group named James Fantleroy, Soul Diggaz, Seven Aurelius, DJ Prostyle and Aasim, in addition to Rob Holladay, Mario Winans, D'Mile and Rodney "Darkchild" Jerkins. DJ Prostyle is the DJ on 106 & Park, where they made the statement, so it's possible that it was more of a tip of the cap to him, as he is one of the Ciroc-affiliated DJs.

Shaun Bless of the Soul Diggaz has worked with Dirty Money in the studio, according to a clip he released; Timbaland mentioned on 106 & Park that he would be working on the album and Kanye West is said to have collaborated with Diddy for a song titled "I'm So Appalled."

As writing credits for songs were released, it was revealed that Fauntleroy co-wrote "Angels," Ness co-wrote "Love Come Down" and Rico Love co-wrote "Hello Good Morning."

Tracks

In December, Diddy said that they had recorded 60 songs. It's quite possible that they have recorded even more songs by now. Because of this, many of the songs - and even the collaborators - listed in this article could be cut, in order to get down to the one album that they decide to release. For the sake of this article, we'll list all of the songs that we know about. But, please keep in mind that many of these may not see the light of day.

Many track titles were revealed through the downloadable "Last Train to Paris" lyric book, which has been updated at least a few times now.

Here are all of the tracks that have been mentioned, along with confirmed credits, in alphabetical order:

"Angels" featuring The Notorious B.I.G. (written by Diddy, Mario Winans, James Fauntleroy, The Notorious B.I.G., Nashiem Myrick, Carlos Broady, Darryl "D.M.C." McDaniels, Deric "D-Dot" Angelettie, R.L. Chambers, Jay-Z and Norman Whitfield)
"Change" (written by The-Dream)
"Cry for Me"
"Hello Good Morning" featuring T.I. (produced by Danja, co-written by Rico Love)
"Hurt" featuring Drake
"I'm So Appalled" (collaboration with Kanye West)
"If You Wanna Go (5th Ave.)"
"Let's Play a Game" (written by T-Pain)
"Lifted"
"Love Come Down" (produced by Rob Holladay, written by Kalenna, Ness, Rob Holladay, Diddy, Jay-Z, Berry Gordy, Alphonso Mizell, Freddie Perren, Deke Richards and K. West)
"Make Love to You" (produced by Rob Holladay and Yung Berg)
"My Heart" (produced by Deric "D-Dot" Angelettie)
"On -N- On -N- On"
"Playing God"
"Private Entertainer"
"Roller Coaster"
"Sade"
"Someone to Love Me"
"Strobe Lights" featuring Lil' Wayne
"Uptown"
"Voices"

Music Videos

The first music video to be released from the album was "Angels" featuring The Notorious B.I.G. which was directed by Hype Williams. This was followed by clips for "Love Come Down" and "Angels (Remix)" featuring Rick Ross. A video for "Someone to Love Me" has also been shot, directed by Nabil Elderkin, who directed Kanye West's Paranoid and "Welcome to Heartbreak" and John Legend's "PDA," among others.

Before entering prison to serve his one year sentence, Lil' Wayne shot a clip, performing his verse on "Strobe Lights," which will allow them to release a video for the song with him in the future, potentially during his incarceration.

Remixes

Though most, if not all of them, will probably not make the album, I thought it'd make sense to cover the remixes that have been released for the songs that will likely appear on "Last Train to Paris."

As far as official remixes go, "Angels" was remixed to include an opening verse from Rick Ross and remove The Notorious B.I.G.'s duplicate verses. A second version came out that included a second verse from Ross and that was used for the music video. Lupe Fiasco and Aasim also jumped on remixes to the track.

Jerry Wonder produced a Dancehall remix that featured Serani and The Notorious B.I.G., as well as some new lines from Diddy. Remixes were also produced by Ted Smooth and Diplo, who put a dance/house twist on the track.

For "Love Come Down," the main remix featured Jim Jones, Fabolous and Red Cafe and Ted Smooth produced another remix, where he kept the Jim Jones verse.

Finally, Diddy and Bad Boy have also promoted some (seemingly) unofficial remixes, including Rick Ross jumping on "Hello Good Morning," Fat Joe's "Angels (Freestyle)" and DJ Rob Dinero's take on "Love Come Down."