Credit: Flynet

They said "I do"... again!

On Monday, to celebrate their first wedding anniversary, Lamar Odom surprised wife Khloe Kardashian with a vow renewal at a very familiar place: The Beverly Hills mansion of music producer Irving Azoff, where they lavishly tied the knot Sept. 27, 2009.

At an L.A. event last week, Los Angeles Lakers forward Odom, 30, was coy with about his plans for the big day. "I kind of got to keep it a secret," he told Us.

"I found out there's a surprise happening," Kardashian, 26, added. "But I have no idea -- and I don't want to know."

On Monday, she blogged about her hubby's sweet plans for the day. In one entry entitled "Part 1 of My Anniversary Surprise!" she posted a pic of herself blindfolded as pal Malika looked up.

"Lamar has truly made our anniversary more special than I ever could have imagined," she wrote. "The day has been somewhat like a treasure hunt, moving from one surprise to the next. Here's a pic Malika took after she blindfolded me en route to the first anniversary location. I'm on cloud 9 right now!"

They then exchanged vows.