After hitting the carpet at Fresh Air Fund Gala in New York City Thursday night, the superstar singer hopped on the subway with pal Jermaine Dupri in her couture gown.
In addition to documenting her first ride on the subway on Instagram, Mariah also showed herself sauntering down the steps into Franklin Street Station in a couple of Vine videos, warning people to watch out for the bags of trash sitting nearby.
"I figured since I'm underdressed, we might as well take the subway," she joked in one video, adding, "Avoid this area!," as she pointed to garbage on the street.
In spite of the trash (and grime) she encountered on the subway, Mariah looked like she was having a blast during her ride, posting a shot that showed her giggling and baring her thigh-high split on a train. "Laughs pon de subway," she captioned one shot, adding, "Glimpses of our joyride on the 1 train #subwayincouture," on another.
Mariah also roughed it in a cab that night for good measure as well. Talk about a rough day.