UNCASVILLE, Conn. (WTNH) — Keith Urban rocked the house at Mohegan Sun on Sunday night while helping raise money and awareness for an important cause: the opioid crisis in Connecticut.

“It [addiction] affects way more people than we realize, it goes outward so fast,” Urban said in an interview with News 8. “It’s something that needs awareness publicly to demystify [addiction] … and that there is a way forward.”

Crowds lined up hours before the doors opened to see Urban, Travis Denning, and Matt Stell — the opening acts.

Some fans showed up in cowboy hats and smiles. Others displayed signs of lost loved ones.

One woman said she was at the concert with her boyfriend as a last hooray before he’s sent off to the Army on Monday. He said it was a great way to remember the brother he recently lost.

Didn’t get to go to the concert but still want to help? You can make a donation by texting CTR25 to 52000.

See some highlights from the night below: