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Sunday marks Adele's long awaited return to the stage, as she'll perform at The 2012 Grammy Awards (where she's also nominated in 6 categories).

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In anticipation of that, she sits down with 60 Minutes' Anderson Cooper and talks, for the first time, about her potentially career threatening vocal surgery.

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"I love talking, [so not speaking] was really hard," she says. "I had an application on my phone that you type the words into it and then it speaks it. But ... I love to swear. Most of [the apps] you can't swear on, but I found this one app where you can swear, so I'm still really getting my point across," she laughs.

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Of the hemorrhaged vocal chord that could have ruined her singing voice, Adele recalls that it felt like "someone put a curtain over my throat ... and I could feel it. It felt like something popped in my throat."

And while Adele sounds -- and looks -- great now (she performs for Anderson during the interview), she reveals that it's a potentially recurring problem that she'll always have to live with. "If I decide to go on a 200-date world tour, it would happen again," Adele says.

60 Minutes airs Sundays at 7 p.m. on CBS.