Liza Minnelli to Undergo Knee-Replacement Surgery

Legendary entertainer Liza Minnelli is reportedly scheduled to have knee-replacement surgery some time this week.

Minnelli will undergo the procedure at a New York hospital and will be unable to attend the Grammy Awards on Jan. 31, according to People.com. Her album Liza's at the Palace, recorded with the original cast from her Broadway event, is nominated for best traditional pop vocal album.

"Minnelli, who has been dancing on stage she was a teenager, is 63," her rep told the Web site. "She is expected to make a full recovery."