Lady Gaga wowed her fans Friday night during her Las Vegas residency debut – and even critics were impressed.

From her emotional performance of "Shallow" to a theatrical story line, "Enigma" is being praised for its energy and heart.

Here's more of what critics are saying about her performance at MGM's Park Theater Friday:

Billboard's Andreas Hale said Gaga served "an absolutely delicious smorgasbord of pop music, performance art and fantastic futurism during her 90-minute set that kicked off in true Gaga fashion."

"Enigma is a full theatrical production with an overarching theme of Lady Gaga seeking to find her inner voice in a narrative that is part 'Wizard of Oz' and part 'Ghost in the Shell' as Gaga interacted with an artificial lifeform known as 'Enigma' on the oversized screens," Hale continued. "The set pieces were just as grandiose and over-the-top as the performances themselves."

People's Mark Gray praised the residency as a "highly energetic show."

"Simply put, it lived up to the hype," Gray wrote. "Enigma was very theatrical and very 'Gaga.'"

E! News' Corinne Heller called the performance "out of this world!"

Rolling Stone's Brittany Spanos also praised the "sensory overload" of a performance.

"For a show that at first seemed like an excuse to remind us what Gaga is best at, it ended up becoming a show that confirms and begins her legacy," Spanos said.

Yahoo Music's Lyndsey Parker said the performance was a "full-on conceptual production featuring the diva at her campy, crazy best..."

"Regardless of whether Gaga wins at the Oscars or Globes, she definitely won over Vegas this Friday," Parker added.

Entertainment Weekly's Marc Snetiker dubbed the show a rebirth to a "weird, wonderful Lady Gaga."

'It’s admirable in its attempts to elevate a greatest-hits gathering into something striving for more, something that perhaps even galvanized an artist in the peak of her career to take a Vegas residency in the first place," Snetiker wrote. "Lady Gaga has always spoken in theatre and spectacle — and in her stunning Las Vegas debut, her vocabulary has found a perfect home."

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