Jason Aldean’s wife gave him a really unique surprise recently: an elaborate fish tank. The artist appeared in an episode of the Animal Planet show Tanked after Aldean’s other half Brittany Kerr recruited the show’s masterminds to create the aquarium of a lifetime for her hubby.

Apparently even Kerr wasn’t sure how he would react.

“He’s gonna kill me, or he’ll be really excited,” she joked when she saw the finished product.

Honestly, his reaction makes it unclear which way he leaned. Whether he was just in shock or didn’t know what to make of the new addition to his home, Aldean’s face was a little hard to read when the tank was revealed.

“What is that?” he says. “What’s goin’ on?"

Kerr reminds him of the show they’ve apparently seen several times, and then the designers reveal themselves.

“You gotta be kidding me,” Aldean comments, recovering from the shock. He soon warms up and looks excited to have the unique centerpiece, complete with exotic fish. “I don’t even know what to say. This is amazing."

Check out the full reveal in the clip from Entertainment Tonight.

Aldean was recently named a More than Pink Hero by Susan G. Komen for his commitment to raising funds for breast cancer research at his shows over the years. He also released a new record in September called They Don’t Know, featuring "Lights Come On" as well as his current single, "A Little More Summertime."

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