In her interview, the young superstar talks about how her latest single, "Green Light," is based on a party her and ex-beau James Lowe attended. Of turning 21, she says she feels it's "a weird milestone... do I have to drink the big drink?" She asks, referring to the New Zealand 21st birthday tradition of finishing a "yard glass" - which holds eight cans of beer - as fast as possible. Catch the full interview in the video below.
Source: Rolling Stone