Zosia Mamet, Allison Williams, Lena Dunham, Jemima Kirke Walk The Red Carpet At The Premiere Of The Finale Season Of HBO's 'Girls'

All good things must come to an end.

The final season of HBO's "Girls" premiered Thursday at Alice Tully Hall, Lincoln Center, in New York City. To no one's surprise, the cast decided to go out in style.

Serving up a fashion flashback, Lena Dunham wore a halter dress featuring a black suede studded top and an ankle-length studded skirt from Todd Oldham's Fall 1996 collection, styled with current Jimmy Choo sandals, an Edie Parker navy pearlescent Lara clutch, Fred Leighton jewelry and wild hot pink eye make-up.

Allison Williams looked lovely in a black off-the-shoulder floor-length center front split dress and white ankle length pants from Gabriela Hearst Spring 2017 collection. She completed the look with pointed-toe pumps and Fred Leighton jewels.

Jemima Kirke wore a romantic one-shoulder ivory Rosie Assoulin Resort 2017 dress featuring a black flower embroidery and high slit.

Zosia Mamet showed some leg in a Marc Jacobs Spring 2017 look, which included a sequin embroidered minidress and a long-sleeve gray-and-black chiffon ruffled printed blouse. She accessorized with black round-toe pumps.

The sixth and final season of "Girls" premieres on HBO Feb. 12.