Jenelle Evans just began her 24th year -- and she appropriately kicked off this brand-new age in style.

The "Teen Mom 2" cast member traveled to New York City for an unforgettable birthday weekend and celebrated her big day (which was on December 19) with her boyfriend David Eason and her close friends.

"Birthday weekend," the mother of two captioned the Instagram selfie above, showing off her glam gold frock for the evening's festivities.

From there, Jenelle ventured to The Empire Hotel Rooftop for a bona fide bash -- and the lady of the hour posed on the red carpet before heading inside to get the party started.

Personalized cookies featuring Jenelle's face, a Tiffany blue-box inspired cake, sparklers and of course, a bejeweled crown befitting the celebration were also front and center at the glitzy affair. "Real World: Ex-Plosion" alum Jay Gotti was also in attendance -- and the MTV duo made sure to snap a photo together (as seen below).

Be sure to offer your (belated) birthday wishes to Jenelle in the comments -- and check out more photos and videos from the soirée below!