Miranda Lambert and Blake Shelton celebrated their wedding anniversary yesterday and now a video has surfaced of the couples first on-stage moment where you can see they had chemistry from first sight.

At the time, in 2005, Blake Shelton was a married man, but he says that he knew there was something between he and his future wife, Miranda Lambert.  The moment came during the CMT '100 Greatest Duets' concert.

According to Taste of Country,

“I was a married guy, you know, standing up there going, ‘Man, this shouldn’t be happening,’” Shelton said of the moment during Lambert’s ‘Behind the Music’ special on VH1. “Looking back on that, I was falling in love with her right there onstage.”

Miranda Lambert felt the same way.  There was instant chemistry.  And thankfully, Blake Shelton dresses better now.....

The couple got married in Texas on May 14, 2011.  Reba McEntire, Dierks Bentley, Lady Antebellum‘s Charles Kelley and Martina McBride were there to celebrate with the couple.

Check out the 2005 video here -