Stage performances are typically live theatrical productions such as plays, musicals, operas, and ballets. Plays are the most common type of stage performance, and involve actors performing a scripted story on a stage in front of an audience. Musicals are similar to plays, but include singing and dancing in addition to the acting. Operas are musicals that are sung throughout, with no spoken dialogue. Ballets are also musicals, but focus more on the dancing than the singing.