How timely, I just got this Google alert that discusses World Renowned Stars and Broadway-Class Productions Are Transforming Entertainment at Sea. Here is the Regent mention:

The nine-piece "Regent Signature Orchestra" performs aboard Seven Seas Mariner, Seven Seas Voyager, and Seven Seas Navigator, lending concert-quality musical support to production shows and breaking into smaller units for combo performances around the ships. Regent Seven Seas Cruises recently hosted a "Theatre at Sea" voyage on the Amazon River that featured such performers as Ed Asner, Tovah Feldshuh, Anne Jackson, Karen Mason, Patricia Neal, Lee Roy Reams and Eli Wallach. A "Cabaret Convention at Sea" featured many of the biggest names in Broadway cabaret, including Marilyn Maye, Billy Stritch, and Steve Ross. On Nov. 15, 2008, Regent will host a "Public Television at Sea" voyage aboard Seven Seas Voyager. Acclaimed hosts of public broadcasting will lead accomplished figures from the media, politics, and academia in stimulating discussions of current affairs, art, theater and television.