Haute Event: John Legend Sings ‘Happy Birthday’ to 1 OAK for the One-Year Mark

The Mirage’s 1 OAK Nightclub celebrated its one-year anniversary on Friday night with a performance by John Legend.

Eli Pacino, Richie Akiva and Scott Sartiano were on hand as the superstar singer, joined by his fiancé Chrissy Teigen, sang “Happy Birthday” to 1 OAK and then treated the crowd of fans to an impromptu version of “Anniversary” before singing hits including “Green Light.”

Also on hand to celebrate and dance to the sounds of DJs Sam French and Daniel Chetrit were actor Ryan Phillippe, Paris Hilton and Brandon Davis.

Click on the photos below to enlarge.

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