Singer-songwriter Sheryl Crow underwent surgery for breast cancer this week and the prognosis for a full recovery is excellent, her publicist said Friday.
Crow had the surgery in Los Angeles on Wednesday and is recovering without complications, said publicist Dave Tomberlin.
"Her doctors think her prognosis is excellent," he said.
In a statement posted on her website, Crow said she would have to postpone a North American concert tour that was scheduled to begin in March. She said she hoped to reschedule the dates as soon as possible.
"Approximately one in seven American women will be diagnosed with breast cancer in her lifetime and more than 2 million Americans are living with breast cancer today," Crow said. "I am joining the more than 200,000 women who will be diagnosed with breast cancer this year."
Crow called the surgery "minimally invasive" and said she will be undergoing radiation treatment as a precaution. She said she benefited from early detection, and urged other women to have themselves checked.
Crow's former fiance, cycling champion Lance Armstrong, said in a statement released Friday night that he was "devastated" to learn the news.
"Once again I'm reminded of just how pervasive this illness is, as it has now touched someone I love deeply," said Armstrong, who is a survivor of testicular cancer.
Crow, 44, and Armstrong, 34, announced earlier this month that they were splitting up. It would have been the Grammy-winning rock star's first marriage and the second for Armstrong, a seven-time Tour de France cycling champion.