In Indian cinema, an item number or item song is a musical number inserted into a film that may or may not have any relevance to the plot. The term is commonly used within Indian films (Hindi, Kannada, Tamil, Telugu, Malayalam and Bengali) to describe a catchy, upbeat, often sexually provocative dance sequence for a song in a movie. The main aim of an item number is to entertain movie-goers and to lend support to the marketability of the film by being featured in trailers. They are favoured by filmmakers as they afford the opportunity to pick potential hit songs from the stocks, since they do not add to the continuity of the plot. It is thus a vehicle for commercial success that ensures repeat viewing.