All year NPR will be producing an exploration of 50 great voices in recorded history. The weekly series isn't an attempt to catalog the so-called "greatest" singers. Instead, we hope to discover and re-discover awe-inspiring vocalists from around the world and across time. Last year we asked you to nominate artists for the series and we received thousands of options. We also asked our panel of experts for their nominations and to help us whittle down the final list to 50 singers — a mix of familiar names and surprising discoveries. Explore the nominated voices below, and check the 50 Great Voices page every week to hear a new profile and guess who will be next. You can also subscribe to the Music Notes newsletter to be notified every time a new story and podcast is available.