[2] Kirshner partnered with Glenn Weiss to create White Cherry Entertainment.
[3] Kirshner has been involved in the Tony Awards since 1993, first acting as a line producer.
[4] From 2007 through 2020, Kirshner acted as executive producer of the Super Bowl halftime show.
[3] From 2015 through 2021, Kirshner, along with Glenn Weiss, was an executive producer of the Kennedy Center Honors.
[9] Kirshner and Wiess also produced the "Celebrating America" television special as part of the inauguration of Joe Biden.