Carrie Underwood is turning the big 3-0 this weekend, but don’t tell the country megastar!

Carrie reveals she’s decided to celebrate this milestone a little differently.

“It’s actually not my birthday,” Carrie says. “It is the first anniversary of my 29th birthday. So it’s more of an anniversary celebration than a birthday.”

Birthday or not, Carrie reveals she plans to spend the big day with her husband Mike Fisher.

“I’m totally gonna splurge, and I made sure my husband’s takin’ me out for a date night ’cause we haven’t had one ’cause we’ve both been away from each other! But I just want to be a glutton and  have a cupcake at the end!”

After her birthday anniversary, Carrie takes her Blown Away Tour across the pond to Ireland and Great Britain.