Adele's voice has got higher since she had an operation on her vocal cords.

The singer made her live return - singing publicly for the first time since last November - at the Grammy Awards on Sunday (12.02.12) and has noticed some distinct changes since she underwent the operation In America to save her voice.

She told Vogue magazine: "It feels really smooth. It's not as husky as it used to be, but that's because I was singing with a polyp. And it's higher than it used to be. Which is a bit weird. I really thought if my voice changed an octave it would go lower. But it still sounds like me."

The 23-year-old vocalist also explained how she had to build her voice back up gradually, and keep silent for a number of weeks and reportedly speaking through a voice generating phone application before humming, then eventually singing again.

She added: "I hadn't sung for about five weeks before my surgery, and then I was in three weeks of total silence, so I have to build my voice back up to be able to belt again like I could before.

"Then I was singing along to things, singing in the shower and the bath. But it's become really easy to sing. It's a pleasure. And I haven't felt like that for quite a while."