Scottish singer Emeli Sandé says the "exploitation" of contestants on talent shows The X Factor and The Voice is "heartbreaking."

Sandé, who reportedly turned down an offer to appear on the judging panel of the UK version of The Voice and who has penned tracks for former talent show contestants Leona Lewis and Susan Boyle, urged TV bosses to feature more new song writing on the shows. 

Speaking to the Radio Times, she said: "I just wish there was more (new) songwriting on those shows. And when they exploit dreams, that's heartbreaking. That's what p***** me off. Don't do that to people just so we can watch it on TV."

However, Sandé, who gave up her medical studies to pursue a career in music, added, "If people get a chance to do something they dream of, you can't be snobby towards that."