41 Conducting entertainment exhibitions on cruise ships in the nature of acrobatics, singing, aerial performances, and multimedia and video projections; Entertainment on cruise ships in the nature of live performances, namely, acrobatics, singing, aerial performances, and multimedia and video projections; Entertainment, namely, production of theatrical performances on cruise ships featuring acrobatics, singing, aerial performances, and multimedia and video projections; Entertainment namely, production of DVDs, compact discs, audio cassettes, and video tapes featuring exhibitions on cruise ships in the nature of acrobatics, singing, aerial performances, and multimedia and video projections