Renowned for their unearthly vocal blend and virtuosic ensemble singing, the four women of Anonymous 4 combine musical, literary, and historical scholarship with contemporary performance intuition as they create ingeniously designed programs, interweaving music with poetry and narrative. In addition to their unmatched medieval repertoire, Anonymous 4 has often reached out into the realm of contemporary music, and has premiered works by Peter Maxwell Davies, John Tavener, Steve Reich and Richard Einhorn. The group has most recently expanded their repertoire to include traditional music of the British Isles and America.

Anonymous 4 has performed in major venues and festivals throughout North America, Europe and the Far East. The ensemble has appeared on numerous radio and television programs, including Garrison Keillor's "A Prairie Home Companion," "CBS Sunday Morning," A&E's "Breakfast With the Arts," and NPR’s “Weekend Edition.” Anonymous 4's award-winning recordings have attained unprecedented popularity, rising to the top of Billboard's classical chart, and selling almost 1.5 million copies worldwide.