The site reported that the Backstreet Boy proposed to girlfriend Rochelle Deanna Karidis on Friday night at his Las Vegas solo concert, where the star took the stage on the eve of his birthday and brought out his lucky lady.
"He brought Rochelle up to the middle of the stage, stops the music and proposed. She said yes and the crowd went crazy," a source told the site.
The singer reportedly purchased a diamond ring at Rocks inside the Hard Rock Hotel that night.
The newly engaged pair will celebrate AJ's birthday and their wedding-to-be at the Hard Rock's club, Vanity.
As for AJ's band, the Backstreet Boys released a new album last fall, with a greatest hits disc, "Playlist: The Very Best of the Backstreet Boys," due in stores on January 26.
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