Tongues were wagging back in 2006 after Blake and Miranda performed the David Frizzell/Shelly West classic, 'You're the Reason God Made Oklahoma,' together on CMT's '100 Greatest Duets' countdown special. The singers' on-stage chemistry was so red hot that many speculated they must be dating! And they indeed were at the beginning of a romance that will proceed down the aisle soon.
Fast forward to Mother's Day, 2010 -- the day Blake finally popped the question, presenting Miranda with a diamond and platinum sparkler. He even revealed an old-fashioned streak by calling her dad to ask for his daughter's hand.
"Weddings are great and engagements are great and diamonds are especially great," Miranda tells PEOPLE, "but I'm just excited to be married because I want to tell Blake I really can love him the rest of my life and be happy and make him happy."
That first duet proved quite prophetic, as the now couple live together ... in Oklahoma.