"Hello" sensation Adele thinks that stopping smoking has weakened her voice. 

She spoke to Canada's eTalk recently and admitted that abandoning her vice has changed her voice a little and she's not sure it's for the better: "The people with the best voices, they always smoke. I've given up smoking and I'm convinced that's made my voice weaker."

Adele went onto add that working with Bruno Mars last year was a challenge as he smokes a lot, but she has managed to remain a non-smoker: "Bruno smokes like an old woman. My make-up artist will stink after having a fag. I had never noticed it before. But my fingers ain't orange any more."

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Watch an interview with Adele below: