The 'Green Light' hitmaker has recalled how she and her fellow New York City travellers were trapped in the confined train for a number of hours but luckily she managed to stay off the radar thanks to some "sweet" people who recognised her but didn't blab about who she was.
She said: "[I was stuck] sitting on the floor for four hours ... All I could think about was that I had a little bit of oatmeal stashed there in my bag, and I was like, anyone finds out, this is gonna be like prized commodity ... This will be my family now, they're gonna be here forever.
"People would be very sweet ... someone would be like, do a little look and I'd be like, 'Shhh.'"
And despite her train troubles, the 20-year-old singer admits the subway "still has a bit of romance" for her.