Ask your travel agent or tour operator for a list of entertainers on the cruise ship. Tell her to send you an e-mail or call you for updates once schedules are made and new performers are booked.
Visit the website for the cruise line. Check to see if they have a list of performers for ships in their line. Look at the "Entertainment" section to get an idea of the types and caliber of performers they normally book. Read the press release section on the cruise line website to find out about major acts and entertainers that will appear on particular ships and cruise itineraries. Sign up to get newsletters via e-mail, and become a fan on Facebook and Twitter so you can get news and updates about the entertainment schedule for your cruise.
Go to websites for entertainers to find out their tour dates. Check to see if they are booked to perform on a cruise ship, the name of the cruise line and the dates they are scheduled to perform. Join their newsletters to get updates. Look into annual cruises, such as "The Fantastic Voyage," for a full roster of top R&B performers, and the Disney Cruise line for families and children.
Check out social media sites for entertainers on Facebook and Twitter. Post a short message or "tweet" your favorite entertainers. Ask if they are going to perform on a cruise ship, and, if so, ask for the name of the ship and the performance dates. Check back on their pages frequently to see if they have posted an answer to your question.
Read entertainment magazines such as Entertainment Weekly for announcements about celebrities who are appearing on cruise ships.
Check out travel magazine websites that often get news about headliners in advance. Visit sites like TravelandLeisure.com and Frommers.com for listings and to read articles and entertainment reviews.
Look into the regular entertainers on cruise ships, as they are often top-class performers with experience on Broadway, in Las Vegas or all over the world. Don't feel that just because you don't know an entertainer by name that their act will be less than professional. Ask about family friendly entertainment venues if you are bringing young children or teens.
Book show tickets in advance, if possible, so you won't miss out on seeing performances.