Pop star Justin Timberlake has reportedly joined Sydneysiders in feeling the full force of the city's tough lock-out laws after his entourage was barred from his own after-party.

The singer, in town as part of his 20/20 Experience world tour, was set to appear at Oxford St’s Miind nightclub yesterday morning after performing but reneged after his touring party were denied entry, Fairfax Media reports .

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Sydney’s bar laws state that patrons cannot enter licensed venues after 1:30am in certain zones in and around the CBD, with Timberlake’s entourage arriving 15 minutes past the deadline.

Miind owner Kunal Singh said the star’s management were unaware of the rules and subsequently cancelled a set by the official tour DJ, Freestyle Steve.

"They were really angry," he said.

"They actually thought we refused entry because we didn't want them in the club."

Mr Singh said while it was his crew that was denied entry, the star himself was en route before deciding against arriving when the news spread.

Timberlake made light of the incident last night on Twitter after Freestyle Steve wrote that he was “pissed” about what had happened.

“All this hoopla and I wasn’t even there… I hope somebody had fun! Hahaha!” Timberlake replied.

The regulations were introduced in a bid to reduce alcohol-reduced violence and are in effect in the CBD, parts of Darlinghurst, Surry Hills and Kings Cross.

In addition to the lockouts, last drinks are now called at 3am and temporary bans can be issued to misbehaving punters.