Liza Minnelli's knee-replacement op
Liza Minnelli is unable to attend the Grammy Awards as she must undergo knee-replacement surgery.
The Cabaret star will miss the January 31 ceremony - at which her album At The Palace, the original cast recording from her Tony-winning Broadway engagement, is nominated for best traditional pop vocal album - to undergo the operation at a New York hospital.
Her representative told People: "Minnelli, who has been dancing on stage since she was a teenager, is 63 - she is expected to make a full recovery."
The 52nd Annual Grammy Awards will take place at the Staples Centre in Los Angeles.