Which 'Teen Mom 2' Cast Member Had An Unforgettable Night At The Grammys?

Hint: The mother of two couldn't stop gushing over Sam Smith.

The 57th Annual Grammy Awards brought together music's brightest stars for a truly spectacular night -- and one very familiar MTV face was lucky enough to witness all of the dazzling performances/collabos and emotional acceptance speeches from a front-row seat.

Kailyn Lowry, who made the cross-country trip to the City of Angels, attended the glitzy show with some of her dearest pals -- and she made sure to document the unforgettable evening with a bunch of social media snaps.

Kailyn Lowry's Instagram

"So thankful to have been invited on their annual girls trip. Love you all so much!!!" the "Teen Mom 2" cast member captioned the glam red carpet Instagram snapshot above. Stunning, ladies!

Let's talk fashion for a minute: Isaac and Lincoln's mama donned a floor-length, sleeveless black gown with sheer detailing and panel cutouts, and she swept her long blond locks up in a low side bun. A silver sparkly clutch, a pair of teardrop earrings and a pop of pink lipstick, and voila! Kailyn and crew fit right in with Rihanna, Katy Perry, Taylor Swift and the rest of the evening's fashion royalty.

Kailyn Lowry's Instagram

Understandably, the 22-year-old couldn't help but express her excitement over one big winner:

No word if the duo actually collided inside of the Staples Center -- or if Kail was fortunate enough to pose with one of his four gold gramophone trophies -- but there's no denying that this mama had a wonderful night to remember!

+ What was your favorite moment from the Grammys? Sound off in the comments below!