Yonder Mountain String Band

In this episode: Rapper M.I.A. is no stranger to controversy: she once performed at the Grammys while nine months pregnant; she raised her middle finger at the Super Bowl; and she threatened to leak her latest album after arguments with the record label. M.I.A. discusses her long-delayed, eagerly-anticipated album Matangi.

Then, a new study shows that making music while working out can be beneficial. 

And, Colorado-based bluegrass band Yonder Mountain String Band performs in the Soundcheck studio.

Today on Soundcheck, a double performance bill: First, My Brightest Diamond, led by singer Shara Worden performs songs from last year's fine album All Things Will Unwind with chamber ensemble yMusic.

Then, more music from the punk-infused bluegrass band Yonder Mountain String Band.