Frazer Harrison/Getty Images for the Critics’ Choice Awards

Three hours after the rest of the world learned that Lady Gaga had been nominated for two Academy Awards for her work in Bradley Cooper’s musical drama “A Star Is Born,” the artist herself found out.

“I’ve been trying to get some sleep because I’m on showbiz time,” Gaga told me this afternoon in a phone call. She is in Los Angeles for a few days before her Las Vegas residency resumes, and instead of waking up at just past five in the morning when the nominations were read, Gaga simply slept in.

“I woke up around 8:30 and I didn’t know anything about it,” she said. The first call she placed was to her manager, who broke the good news to her, “and I just burst into tears.”

[Read more about the nominations | Check out the full list of nominees | See the snubs and surprises.]

But surely Gaga’s phone had been tapping out a Morse-code stream of congratulatory texts since dawn. That constant rat-a-tat didn’t wake her up? “I can sleep through just about anything,” Gaga said dryly.

Which is not to say she…