Clearly a couple of platinum albums and chart-topping songs have changed the lives -- and bank accounts -- of the members of Lady Antebellum. Now, the female singer in the band, Hillary Scott, is putting her windfall into real estate.

"I just signed the papers on my house, the first house ever," Hillary gushes (quote via Access Hollywood). "So I'm celebrating that!"

The 24-year old has plenty of reasons to break out the champagne. Already Grammy winners, Hillary and bandmates Dave Haywood and Charles Kelley recently celebrated a double-win at the CMA Awards, and are nominated for five American Music Awards, seven American Country Awards and one People's Choice trophy.

But while the Nashville native is enjoying all of Lady A's accolades, she says it is a bit sobering to realize how much her life is changing. "I'm like, 'Welcome to being a grown-up, Hillary'," she admits. "Now I have a mortgage. This is scary!"

Currently headlining their first tour, after learning the ropes as opening acts for acts like Tim McGraw and Martina McBride, they trio admit it's much harder to be the boss. "It's a lot more responsibility than I think you realize until you start embarking on it and making all these decisions," Hillary tells The Boot. "It makes us appreciate the people we've opened for over the years a lot more. You just have to think about every little thing from what people are eating to the set list. Everything. It runs the gamut."

Lady A's current single, 'Hello World,' is at No.22 on the charts and climbing. Their tour, which includes David Nail as the opening act, will play in Nebraska and Missouri this weekend. Find tour info here.