A theme song is a piece of music specifically composed to represent a particular show, movie, or event. It often captures the essence of the storyline or the emotions of the characters, making it memorable for the audience. Theme songs can be instrumental or include lyrics, and they are typically played during the opening or closing credits. These songs help set the tone for the television show or film, creating an immediate connection with viewers. Famous examples include the Friends theme song, "I'll Be There for You," and the iconic James Bond theme. Theme songs can become cultural touchstones, often recognized even by those who haven't seen the associated media.