Miranda Lambert's trophy case might soon need another shelf.

The reigning CMA Female Vocalist of the Year is nominated for a Grammy  for Best Country Solo Performance, for her No. 1 single, 'Mama's Broken Heart.'

“I’m so thrilled to have a Grammy nomination with such a great song,” the Oklahoma star says (quote via Taste of Country). “’Mama’s Broken Heart’ is one of my favorite songs I have recorded.”

Lambert is joined in the category by Lee Brice, Hunter Hayes and Darius Rucker, as well as her own husband, Blake Shelton, who is nominated for his song, 'Mine Would Be You.'

“It’s also unique to be in the same category with my very talented husband," the 30-year-old adds." I am proud to be part of the wonderful country music family!”

'Mama's Broken Heart' also earned a Grammy nod for Best Country Song.

Lambert's instincts proved correct on the platinum-selling tune. Written by Kacey Musgraves, Brandy Clark and Shane McAnally, and originally intended for Musgraves' debut album, the songstress knew early on she wanted it for her 'Four the Record' album instead.

“I loved the song so much I was willing to fight for it if she didn’t want it,” Lambert recalls. “I asked [Musgraves] if I could have it and told her to think about it and let me know. A week later, she wrote me an email and said, ‘Well, if I can sing harmony on it I guess you can have it.’ I said, ‘Deal.’”

Lambert already won one Grammy, in 2011, for Best Female Country Vocal Performance for her hit, 'The House That Built Me.'

The 56th annual Grammy Awards will air on Sunday, Jan. 26 at 8PM ET on CBS.