For all their criticisms Sydney's lockout laws have apparently proved classless after Justin Timberlake's entourage were denied entry to a club on Friday morning.

The international superstar was expected to stop in at the official after-party for his 20/20 Experience World Tour but when his management arrived at the Oxford Street club at 1.45am they weren't let in, the club's owner said.

Squeaky clean: Justin Timberlake is looking for an edge. Credit:Getty Images

Sydney's liquor-licensing laws mean that people cannot enter a bar or club in the lockout zone past 1.30am. Miind nightclub owner and licensee Kunal Singh said that although he tried to explain how the lockout laws worked, Timberlake's management could not understand why they weren't allowed inside.

"They were really angry," he said. "They actually thought we refused entry because we didn't want them in the club."