Eminem & Slaughterhouse New Music RUMORS: Instagram Studio PHOTO Hypes 'Glass House' Album, 2015 Release?

Eminem's hard at work in the studio - again.

On Thursday (February 6), Slim Shady shared this viral snapshot on Instagram. The "Rap God" is pictured hustling behind the scenes with infamous hip-hop supergroup, Slaughterhouse:

eminem: "Glass House sessions with @royceda59 @kxngcrooked @joebudden @joellortiz."

The 42-year-old Detroit emcee's helped launch the band's success on Shady Records. Several of their latest hits were featured on the two-disc compilation album Shady XV, including "Psychopathic Killer" and "Y'all Already Know" -

The boys of Slaughterhouse (including Crooked I, Joe Budden, Joell Ortiz, and Royce da 5'9") are currently working on their fourth studio record, Glass House. Details surrounding the release remain a mystery, but fans can likely expect some new music sometime in 2015. Hopefully Em will lend his hard-hitting rhymes on a few of the upcoming singles.

According to "The Monster" superstar's loyal manager Paul Rosenberg, Slim's a very dependable boss and mentor (via MLive.com):

"I think that how hard he worked to regain his footing as an artist after he got sober really continues beyond that because of how important he thinks it is to sort of maintain his presence in the music scene for his fans... So five days a week, typically Monday through Friday, he'll be in the studio. It's not quite nine to five - the hours tend to be quite longer - but he's there everyday... And that is hopefully what people see when they come work with him, how serious he takes it. He's extremely passionate about making music. I don't think he views it as punching the clock or anything like that, but it takes a lot of work to be as productive as he is and to maintain the quality that he does."

No worries, #Stans - The "Berzerk" rapper's not slowing down anytime soon!