She has been his rock ever since they got married 12 years ago.

And Nicole Kidman was once again by her husband Keith Urban’s side as he won Entertainer of the Year at the 2018 Country Music Association Awards.

The statuesque 51-year-old Australian actress couldn’t wipe the proud smile from her face as the 51-year-old country star took home his award.

Winner: Nicole Kidman was once again by her husband Keith Urban’s side as he won Entertainer of the Year at the 2018 Country Music Association Awards.

Nicole’s black top was covered in feathered accents and featured a low neckline.

She donned a knee length skirt underneath that highlighted her slender legs, and she accessorized with gold bracelets and pendant earrings.

The Big Little Lies actress pulled some of her locks into a ponytail and let the rest fall in waves across the right side of her face.

Happy couple: The statuesque 51-year-old Australian actress couldn’t wipe the proud smile from her face as the 51-year-old country star took home his award

Stars: Nicole’s black top was covered in feathered accents and featured a low neckline

Keith Urban at the 52nd annual CMA Awards in Tennessee

Keith kept things simple as he donned a green t-shirt and jeans with a plaid blazer on top.

The John Cougar, John Deere, John 3:16 singer was named Entertainer of the Year, the night’s biggest awards.

He was effusive during his speech, thanking his fans, crew, God, and his departed father.

He even shed a couple tears while looking out at the audience and his beautiful wife, and ended his speech, ‘God bless country music.’

This is the second time he has won Entertainer of the Year at the Country Music Association Awards, having previously picked up the trophy in 2005.

Straightforward: Keith kept things simple as he donned a green t-shirt and jeans with a plaid blazer on top

Tearing up: The John Cougar, John Deere, John 3:16 singer was named Entertainer of the Year, the night’s biggest awards

Effusive: He was effusive during his speech, thanking his fans, crew, god, and his departed father

Keith Urban gathers fans to sing Nicole Kidman Happy Birthday for 51st

Keith took the stages twice over the course of the night, starting with a performance with recent Country Music Hall of Fame inductee Ricky Skaggs.

They played Highway 40 Blues with his band, Kentucky Thunder, after the legendary artist played Black Eyed Suzie.

Later, Keith got the crowd and his wife on their feet while performing “Never Coming Down.

Rock star: Keith took the stages twice over the course of the night, starting with a performance with recent Country Music Hall of Fame inductee Ricky Skaggs

Duo: They played Highway 40 Blues with his band, Kentucky Thunder, after the legendary artist played Black Eyed Suzie

Emotional: He even shed a couple tears while looking out at the audience and his beautiful wife, and ended his speech, ‘God bless country music’