is undergoing surgery on her vocal chords – but it's not because she has cancer, as some have speculated.
"We would like to reiterate that Adele is to undergo surgery for a hemorrhaged vocal chord," her rep said in a statement Monday in response to rumors on Twitter that the British singer has throat cancer. "All reports regarding any other condition are 100% false."
, 23, has subsequently canceled the remainder of her North American tour, in addition to several dates in the U.K.
The Grammy winner, who released her chart-topping sophomore album 21
in February, has previously expressed her disappointment, blogging on Oct. 4
, "I'm heartbroken and worried to tell you that yet again I'm experiencing problems with my voice."
The singer's surgery is imminent, and doctors have ordered her to rest before performing again, while a statement on her official website says that "a full recovery is expected."