The hearing, titled "Ensuring Artists Fair Compensation: Updating the Performance Right and Platform Parity for the 21st Century," will focus on a recent push to pay artists for music that is broadcast over AM and FM radio.

The movement is being led by the recently launched musicFirst coalition, which has amassed an impressive list of backers, including pop star Christina Aguilera, crooner Celine Dion and soul singer Patti LaBelle.

The National Association of Broadcasters has vowed to fight the effort, calling the proposal a "performance tax on local radio." Stay tuned for the fireworks...