Barry Manilow made a surprise appearance at a pre-Grammys party days after undergoing emergency surgery.

Barry Manilow

Barry Manilow

The 72-year-old singer was on hand to perform his hit 'Mandy' at Clive Davis' annual bash to reminisce 40 years since he performed the track at the inaugural celebration.

Speaking at the event, he said: "I'm really glad to be here. What a week! This is the 40th anniversary of the release of 'Mandy' - and the beginning of this beautiful party."

Earlier this week, the 'Can't Smile Without You' hitmaker was rushed to hospital following surgery complications, forcing him to cancel two shows.

A statement at the time read: "Following a triumphant sold out concert in Memphis, Barry Manilow was rushed back to Los Angeles due to complications from emergency oral surgery that Manilow had on Monday.

"Manilow's concerts in Highland Heights scheduled for tonight (Thursday, Feb 11) and Nashville (Feb 12) are being re-scheduled with new dates to be announced shortly. Ticket holders should retain their existing tickets for redemption on the night of the new date.

"At this time it is unclear if Manilow will be able to attend the Grammy Awards on Monday, February 15th where he is nominated for his 15th Grammy Award for his latest album, 'My Dream Duets.'"