Both Osnes and Draper will be on hand to greet fans and perform.

Hosted by Brandon Cutrell and Alysha Umphress, "The After Party" at the Laurie Beechman Theatre features Ray Fellman at the piano. Amateurs and professionals are invited to take turns at the open mic during the "Party," which begins at 10:30 PM and continues to 2 AM.

Laura Osnes made her Broadway debut in Grease, having won the role of Sandy on NBC's reality TV series "Grease: You're The One That I Want." She is currently in rehearsals to assume the role of Nellie Forbush in the Tony-winning revival of South Pacific at the Vivian Beaumont Theater.

Lavinia Draper is the nightlife persona of and created by actress Susan Campanaro, who plays a weekly self-titled show at Therapy. Campanaro has also been seen in Tony-n-Tina's Wedding and All Dolled Up, which she also directed. She is also the playwright of The B is Back Online.

The Laurie Beechman Theatre is located within the West Bank Cafe at 407 West 42nd Street. There is no cover charge or minimum for "The After Party."