LONDON: Pop singer Christina Aguilera has agreed to act in a film as it will let her share screen presence with her idol and Academy Award singer Cher. She will be seen in Burlesque that features her as a small-town girl who moves to Los Angeles to become a star and ends up working in a burlesque club, reported thesun.co.uk. Cher too is acting in it and Aguilera revealed that she said yes to the role because she idolises the veteran pop star.