ACMs 2019: Miranda Lambert makes red carpet debut with husband Brendan McLoughlin

Their big debut.

Miranda Lambert and husband Brendan McLoughlin made their red carpet debut at the 2019 ACM Awards in Las Vegas on Sunday night, making it their first official public appearance together since secretly getting married back in January.

SEE ALSO: Who is Miranda Lambert's new husband? Meet NYPD officer Brendan McLoughlin

The "Gunpowder & Lead" singer looked stunning in a shimmering, lime green halter dress, while McLoughlin looked dapper in a classic suit with his hair slicked back.

See photos of Miranda Lambert and Brendan McLoughlin's red carpet debut:

Also at the ACMs? Lambert's ex-husband, Blake Shelton, and his longtime girlfriend, Gwen Stefani. It's unclear if the exes ran into one another inside the ceremony, but they definitely didn't cross paths on the red carpet, as Shelton and Stefan opted to skip it.

Lambert and McLoughlin's outing comes nearly three months after they tied the knot outside of Nashville, but less than two after their relationship and wedding was revealed to the public. Lambert kept her nuptials with the NYPD officer a secret for a month until she shared the news on Instagram on Saturday, February 16, writing, "I met the love of my life. And we got hitched! My heart is full. Thank you Brendan McLoughlin for loving me for.... Me. #theone."

In the weeks since her big reveal, reports have shed light on how Lambert first met McLoughlin and the head-turning allegations about the police officer's transgressions over the past year. McLoughlin reportedly met Lambert while he was on duty in Times Square and she was appearing on "Good Morning America" in early November, three days before McLoughlin welcomed his first child with the woman he reportedly cheated on his ex-fiancée with.

His alleged ex-fiancée's mother has repeatedly spoken out about McLoughlin, calling him "lying, cheating, conniving, narcissistic" and a "no good piece of garbage."

See photos from the couple's secret wedding:

SEE ALSO: Miranda Lambert lashes out at reporter alongside new husband

Despite his controversial past, Lambert is already picturing a future with the Staten Island native, with insiders telling ET that they're planning on having children together.

"We've never, ever seen her so happy and think she's finally found her one and only,” the source said. “Miranda and Brendan both want kids. [She] never felt ready to have children until she met Brendan and now she's excited to be a stepmom. She even says it's great practice for when she has a baby."

"Brendan makes Miranda feel grounded, centered and very safe. He's a police officer and everyone has been loving that she fell for a man in uniform,” the source continued. "Miranda is relieved to have found someone who isn't in the music industry. Brendan is perfect for her."

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