Eminem New Album 2013: Twitter Fans Abuzz Over 'Mystery' Release Date, Slim Shady 'Chills with Cops Backstage' at Windsor-Detroit International Freedom Festival 2013 [PHOTO]

Oh, Eminem - the Detroit rapper can be such a tease sometimes! Details surrounding Slim Shady's highly-anticipated 2013 album STILL remain a total mystery... and it's driving Twitter fans absolutely insane! At LEAST give us a hint about the upcoming release date, Marshall Mathers! The only thing we know for sure is that Eminem's preparing to embark on a mini-tour of Europe this August... so hopefully he'll debut some new songs soon? In the meantime, Mstars will continue to provide anxious fans with some fun and amusing Slim Shady tidbits... including this photo of Em chilling with some cops backstage at the 2013 Windsor-Detroit International Freedom Festival back in June!

UPDATE: Eminem New Album Release Date COMING SOON: Slim Shady Producer Mr. Porter Tweets 'Keep Calm, Don't Rush Art!' Rapper Prepares for August Tour [FULL LIST]

Initially, rumors suggested that Shady's eighth studio record would be officially released the day after Memorial Day (May 28, 2013). Yeah... that didn't happen. Then Eminem was supposed to surprise fans by dropping the new album on July 3... again, not true. NOW, the album is scheduled for an alleged "fall" release date - whatever that means...

@LibbyDeskin: "Eminem's new album isn't coming out till the fall. K brb while I cry."

@Margitini: "You know @Eminem is really playing with my emotions here.. RELEASE YOUR NEW ALBUM ALREADY!!!"

@Dr45Evil: "There still no news about @Eminem's new album... Back to sleep then :'( #Teamshady."

@Jamsterwbu: "This will be my reaction if @Eminem releases a new album this year..."

@AdorableJoeJ: "When Jonas and Eminem release their new album, I'll be 60 years old."

@princessteira: "*impatiently waits for eminem's new album*."

Here's the deets that fans need-to-know (for now):

Eminem New Album Release Date RUMORS: Schoolboy Q Talks Black Hippy's Detroit Studio Hangout with Slim Shady, 'Not Looking for New Song, Just Chill' [VIDEO]

Eminem New Album 2013: 'Hall of Fame' Rapper Big Sean Talks 'Huge Detroit' Slim Shady Collaboration, Deems Marshall Mathers a 'True OG, Real Nice/Polite Guy' [VIDEO]

Eminem New Song 'Symphony in H' Available on iTunes [FULL], Slim Shady Prepares for August Tour, Release Date in September? [LISTEN]

Eminem Talks Pill Addiction in 'How to Make Money Selling Drugs' as Release Date, New Music Rumors Swirl, 'My Bottom was Gonna be Death' [VIDEO]

Eminem New Album Release Date Not Until Fall? Producer Mr. Porter Tweets 'Have Not Heard Anything Like It' about Slim Shady New Music, 'Will Be on the Road Soon'

And before heading overseas to appear at a handfull of performances...

August 15, 2013: Kempische Steenweg, Kiewit (Pukkelpop 2013)
August 17, 2013: Slane, Ireland
August 20, 2013: Dumbreck Road, Glasgow Eminem
August 21, 2013: Bramham Park, Leeds (Leeds Festival 2013)
August 22, 2013: Stade De France, La Plaine St Denis
August 23, 2013: Bramham Park, Wetherby (Leeds Festival 2013)
August 24, 2013: Reading, Reading (Reading Festival 2013)
August 25, 2013: Bramham Park, Leeds (Leeds Festival 2013)

Eminem hung-out in Detroit to celebrate the city's annual International Freedom Festival - a multi-day celebration in late-June marking Canada Day (July 1) and America's Independence Day (July 4). And who did Shady spend his time celebrating with... two police/security officers, apparently!

Here's a photo posted on the Eminem Journal Tumblr page.

This photo was taken backstage at the Windsor-Detroit International Freedom Festival 2013 (or 55 annual Fireworks) in Detroit on June 24.

Like we said, Eminem never fails to shock his fans!