Seibert is the daughter of Debbie (née Sykes) and Willis Seibert. She has one sister. She graduated from
Glenelg High School in 2002 and
American University in 2005 with a degree in international relations, and also was involved with theatre.[1][2]
Career
Seibert was nominated for a
Drama Desk Award in 2014 for playing the title character of Tamar in the Off-Broadway musical Tamar of the River by Marisa Michelson and Joshua H. Cohen and produced by the Prospect Theatre Company.[3] She made her Broadway debut originating the role of
Adrian Pennino in the musical version of Rocky originally played in the films by
Talia Shire.[4] Later, she played Tock in the musical adaptation of The Phantom Tollbooth at the
Kennedy Center.
In October 2018, Seibert released her debut album 77th Street.[7]
She played the role of Jane in the Original Broadway cast of the
a capella musical In Transit, which opened on Broadway on December 11, 2016.[8][9]
Seibert played the role of Jessica in the hit Off-Broadway play Octet in 2019. Similar to In Transit, Octet is performed entirely a capella, using a
chamber choir style.[10] The production released a live cast album on November 15, 2019.[11]