Mark Rivera is an American saxophonist, multi-instrumentalist, musician, musical director and corporate entertainment provider who is mostly known for his work with Billy Joel. In addition to playing soprano, alto, tenor and baritone saxophones, Rivera's musical talents encompass vocals, guitar, flute, percussion, and keyboards. Wikipedia*
On the C-SPAN Networks:
Mark Rivera has one video in the C-SPAN Video Library; the first appearance was a 2013 Forum.