Backstreet Boy A.J. McLean Weds! (omg!)

Sorry, BSB fans: A.J. McLean is officially off the market.

The Backstreet Boys singer married his longtime girlfriend, Rochelle Karidis, Saturday in Los Angeles, Us Weekly can confirm.

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Attended by Kathy Griffin, New Kids on the Block singer Joey McIntyre and BSB's Kevin Richardson, Howie Dorough and Nick Carter, the couple's evening ceremony was held at the posh Beverly Hills Hotel, and officiated by celebrity photographer Tyler Shields.

Saturday's nuptials were a long time coming for the pair, who postponed saying "I do" when McLean checked into rehab for the third time earlier this year.

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The singer, who proposed to his girlfriend on his 32nd birthday in January 2010 during a live concert performance in Las Vegas, credits his new bride with encouraging his sobriety.

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"I really miss and love [Rochelle]. You are my whole world and I cannot wait to spend my life with you," he recently tweeted, linking to his then-fiancee's Twitter handle. "Without you here, I am lost!"

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