Selena Gomez confessed to having her first legal drinks on her 21st birthday on "The Tonight Show with Jay Leno" on Tuesday, according to Hollywood Life.

The "Birthday" singer, who reportedly split from Justin Bieber, was living the good life on her milestone birthday on Monday. Though the world was celebrating the royal baby's arrival, Gomez was celebrating her born day with knocking back some Jack Daniels Whiskey shots, reported HL.

Leno asked Gomez just had many shots she had to which she gave a very funny reply, "I don't remember," the singer said while "playfully scrunching up her face and laughing."

The late-night host then asked if she "was hungover today" and "if she had a big party" to which she replied, "A little bit."

"It was fun though," Gomez continued, "It was good."

And though the Adidas NEO designer already had two huge birthday blowouts at Julianne Hough's 25th birthday party and with her friends, Gomez is planning another one for Saturday, July 27, HL said.

She shared the party details, "I'll have a birthday party this weekend but I had a dinner with my friends."

"The party's going to be kinda of a gypsy theme," she continued. "I'm excited. We're gonna have skirts and tattoos and belly dancers. It'll be kind of the whole thing, it'll be fun."

Think Gomez' next bash will be more fun than her last? Tell us in the comments section below!