Mick Jagger is stepping out again, this time with a new supergroup not so modestly named SuperHeavy. The project is the braindchild of the Rolling Stones singer and Eurythmics dude Dave Stewart, who started with the idea of bringing together musicians from disparate backgrounds to see what happens. Toward that end, they recruited the most talented of Bob's heirs, Damian Marley, along with young British soul-pop star Joss Stone and the producer/composer of the "Slumdog Millionaire" soundtrack, A.R. Rahman. Not exactly the Traveling Wilburys, but that seems to be part of the point.

Today, SuperHeavy dropped the first song off its upcoming album, titled "Miracle Worker." It's for sale at iTunes and Amazon. Click here to hear the track -- not exactly anything miraculous, but the vaguely Jamaican groove is pretty infectious and the voices don't totally clash. The full album is due out sometime in September and is said to also be laden with the Indian music flavor of Rahman's work (not so evident here). While Jagger has issued a steady stream of forgettable solo albums over the years, this is actually his first band project outside the Rolling Stones.

There's also a new SuperHeavy promo video for the project circulating the web, which you can see here on YouTube. A warning: The clip opens with a rather perplexing clip of Stone bellowing out an F-bomb. Yeah, what is going on here, Joss?

SuperHeavy is (from left): Damian Marley, Dave Stewart, Mr. Jagger, A.R. Rahman and Joss Stone.

SuperHeavy is (from left): Damian Marley, Dave Stewart, Mr. Jagger, A.R. Rahman and Joss Stone.