If you can believe it, country music super couple Trisha Yearwood and Garth Brooks have been married for 13 years. (Like Rach and John!) And they have a really beautiful way of celebrating their anniversary.

"When I married Garth, he had three daughters, so I became a bonus mom," Trisha says. (She calls herself a "bonus mom" because of the negative "Cinderella"-like connotations of "stepmom.")

"You're a bonus mom because the girls have a mom," she continues, "so I get to be another woman in their life who loves them."

(How sweet is that?)

And when she and Garth got married, they included his three daughters in the ceremony with the girls in wedding dresses. (They exchanged rings, too!)

"They had to say it was okay for me to marry their dad," Trisha explains.

So while the couple does do something romantic for themselves another weekend, they have a group anniversary with their children to commemorate their family coming together. As Trisha says, "our anniversary is our anniversary."

We love it!