Dre and Shady are back in the studio, but for what project?

Eminem gave fans reason to be excited when he revealed that he was in the studio with Dr. Dre - despite the vagueness of the news.

Shady called into "The Morning After" with Angela Yee yesterday (October 28), commemorating his Shade45 radio station's sixth anniveresary.

"I'm in the studio with Dre now, let's jus say that," teased Em, saying that Dre was in the other room. "Pretty soon he's going to make a beat and I might rap on it."

Em added that he was planning on "taking a break" after the success of his latest release, Recovery, and his four-date tour with Jay-Z.

Eminem did not clarify whether he's working on a new solo project, or whether the Dre beat is for the long-delayed Detox.

Forbes released their annual hip-hop cash king list today and at the top of the pile is Jay-Z. They estimate Hov grossed $63 million last year. Rounding out the top five are Dr.Dre ($17 million), Lil Wayne ($20 million), Akon ($21 million) and Diddy ($30 million).

Rich Boy's self-titled debut boasted considerable production credits, featuring Polow da Don, Lil Jon, Mr. DJ, Needlz and others.

That tradition will continue, it seems, as the Interscope signee revealed that Dr. Dre would be contributing to the album. "Yeah, I’m on the way to the second album of my career," said Rich Boy in an interview with XXLMag.com. "I’ve just been up here workin’ with Polow, and workin’ with Dr. Dre… Been workin’ with all kinds of people, but those are the main two people that I’ve just been seein’ on a day-to-day note tryin’ to put it together. Polow’s the executive producer of the second [album]."

Rich Boy explained that there was no set release date for the album, but that he was hoping for a first quarter release next year at the latest.

He also revealed the album's title, and explained its significance. "It’s called Resurrected in Diamonds cause it’s like you know, Africans were rich in Africa. They had diamonds, gold, and all that shit, so we lost the ball when we were put into slavery. But now you see niggas gettin’ it back, like diamonds and shit rollin’ wit they crew."

If you’re wondering why Detox is taking so long, you may want to ask Justin Bieber. The 16-year-old sensation took a field trip to Dr. Dre’s studio, diverting his attention from the long-awaited project.

While there’s a line around the block to see the Doc, you’re given a front-of-the-line pass when you’re the biggest teen pop star in the world. Justin Bieber spent his day off from touring by getting a lesson from the hip-hop pioneer. “Got to be in the studio with the legend himself Dr. Dre,” he wrote on Twitter. “Made a couple beats and he gave me some advice…i was hyped. can u blame me?”

The hip-hop community has been receptive to Bieber, who’s hobnobbed with Dre affiliate Eminem and received an endorsement from Game. “He’s another artist that breaks the color lines,” the West Coast rapper told Rap-Up TV. “Everybody loves this kid and he seems like a good kid. More power to him.”

Bieber’s tourmate Sean Kingston also shared in the unforgettable experience. “Aww Man Today Was A Dope Day!!! Got To Meet Dr. Dre… EVEN FREESTYLED ON 1 OF HIS BEATS :) MUST SAY THAT WAS #LEGENDARY,” he tweeted.