By Kevin Kayhart For Dailymail.com
Published: 05:05 GMT, 16 March 2019 | Updated: 05:57 GMT, 16 March 2019
Lady Gaga has always had the flare for the theatrical.
And that's exactly what went down when she hit the stage for an impromptu performance at the Black Rabbit Rose cocktail bar in Hollywood Thursday night.
To the surprise, and delight, of the audience, the Born This Way singer dusted off her crooning vocal style and belted out two jazzy-infused tunes made famous by Ol' Blue Eyes himself, Frank Sinatra.
'My whole life, you know, I've been called irresponsible,' Gaga said to the stunned crowd. 'It doesn't make me so mad because it's kind of true... and I like to hear the truth.'
Superstar shocker: Lady Gaga gave a surprise performance at the Black Rabbit Rose cocktail bar in Hollywood Thursday night, to the delight of the audience
With those introductory words, the band kicked into