Lady Antebellum's sophomore album 'Need You Now, was released this week, giving the trio their first taste of crossover success as the title cut from that album climbs the Adult Contemporary chart. But while they appreciate the widening appeal of their music, it's still the approval of their country heroes they seek the most.

"I really do care what George Strait thinks of us," Charles Kelley tells Nashville's Tennessean newspaper. "I care what Reba [McEntire] thinks. I want Keith Urban to listen to our record and come up and say, 'What a song.' We want that stamp of approval from the superstars saying we're representing this genre well because they know it better than we know it. And, we want to play stadiums."

Performing at this Sunday's Grammy Awards, where they are also nominated in two categories, Charles says they are all extremely grateful. "It is a giant opportunity, especially being a country act," he tells The Boot. "And to have Zac Brown and Taylor Swift performing, too, it's going to be a great night for country."

The Grammy Awards will be televised live on CBS this Sunday, Jan. 31.