Lady Gaga is seen bringing the music, dance and a very bad romance to the Joker film sequel in its first trailer.

The singer and actress plays a new version of Harley Quinn in Joker: Folie à Deux opposite Joaquin Phoenix, who won an Oscar for the original movie.

The pair seemingly meet and fall in love in Arkham Asylum before apparently escaping and forming a musical duo.

Director Todd Phillips says it isn't a musical, as had been rumoured, but that music is "an essential element".

Source : BBC