The King of Country, George Strait, was joined onstage in Las Vegas, Nev., by country superstar Miranda Lambert at the 2019 ACM Awards on Sunday night (April 7) at the MGM Grand Garden Arena.

The pair of Texas artists tackled Strait's laid-back, lovelorn 2001 hit "Run," a perfect choice, as their voices blended perfectly throughout. Pedal steel and piano also emerged high in the mix, lending evocative texture to the tune.

"That's the king, y'all! George Strait!" Lambert exclaimed at the end of the performance.

Strait and Lambert's performance was part of the ACM Flashback performance series, although each artist also performed separately earlier in the night. The former did a rendition of his new song "God and Country Music," while Lambert performed a medley of hits.

Strait recently extended his residency in Las Vegas, which he's been playing since 2016, and he released a brand-new album, Honky Tonk Time Machine, at the end of March. The record features such songs as "The Weight of the Badge," and includes appearances from Willie Nelson and Strait's 6-year-old grandson Harvey.

Lambert is the most-awarded artist in ACM Awards history, collecting 32 trophies over the years. She was in the running this year for Female Artist of the Year, and recently scored a No.1 hit with her collaboration with Jason Aldean, "Drowns the Whiskey."

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