Sirius XM Radio Star Seth Rudetsky hosts and music directs his acclaimed international concert series online. Presented by Mark Cortale, these up-close and personal weekly concerts will feature Broadway's biggest stars in a seamless mix of intimate behind-the-scenes stories prompted by Seth's funny, insightful and revealing questions - and the songs from each star's stellar Broadway career. The Seth Concert Series is sponsored by BroadwayWorld and StreamYard.