The first of Justin Timberlake's two concerts in New York City has been postponed.
The singer posted on his Twitter feed that the postponement is due to health reasons. The show originally scheduled for February 19 has been rescheduled for February 21.
Timberlake apologised on Twitter and said: "It kills me to have to do this. I hope to see you all on Friday."
On its website, Madison Square Garden said ticketholders could get a refund if they couldn't attend the rescheduled gig.
The Thursday night performance in Timberlake's The 20/20 Experience World Tour is expected to take place as planned.