Theatre songs are musical pieces performed in stage productions, often conveying emotions, advancing the plot, or developing characters. They are integral to genres like musicals and operas, where music and lyrics enhance storytelling. These songs can range from solos to ensemble numbers, showcasing the talents of the performers. Typically, theatre songs are written by composers and lyricists, with notable examples including works by Stephen Sondheim and Andrew Lloyd Webber. They often feature memorable melodies and poignant lyrics, making them popular beyond the stage. Many theatre songs have become classics, enjoyed in concerts and recordings worldwide.