(1/6) 13 Opening: Eric M. Nelsen, Delaney Moro and Aaron Simon Gross having fun at the after party

Eric M. Nelsen, Delaney Moro, Aaron Simon Gross at the opening night after party for the new Broadway musical 13 held at Opera, New York City - October 5, 2008

Joseph Marzullo/WENN

TAGS: Eric M Nelsen, Delaney Moro, Aaron Simon Gross, 13 The Musical, Broadway

(2/6) 13 Opening: The cast celebrates at Opera

Top row, from left: Elizabeth Egan Gillies, Graham Phillips, Ariana Grande, Allie Trimm, Delaney Moro, Eric M. Nelsen, and Joey La Varco. Bottom row, from left: Al Calderon, Aaron Simon Gross, Brynn Williams, Eamon Foley, Caitlin Gann, and Malik Hammond celebrating at the opening night after party for the new Broadway musical 13 held at Opera, New York City - October 5, 2008

Joseph Marzullo/WENN

TAGS: Elizabeth Egan Gillies, Graham Phillips, Ariana Grande, Allie Trimm, Delaney Moro, Eric M. Nelsen, And Joey La Varco, Al Calderon, Aaron Simon Gross, Brynn Williams, Eamon Foley, Caitlin Gann, Malik Hammond, 13 The Musical, Broadway

(3/6) 13 Opening: Aaron Simon Gross celebrates at Opera

Aaron Simon Gross at the opening night after party for the new Broadway musical 13 held at Opera, New York City - October 5, 2008

Joseph Marzullo/WENN

TAGS: Aaron Simon Gross, Headshot, 13 The Musical, Broadway

(4/6) Next to Normal Opening: Aaron Simon Gross and Ariana Grande, from the musical 13

Aaron Simon Gross and Ariana Grande at the opening night of the Broadway musical Next To Normal at the Booth Theatre, New York City - March 15, 2009

Joseph Marzullo/WENN

TAGS: Aaron Simon Gross, Ariana Grande, Next To Normal, Broadway

(5/6) 13 Opening: Aaron Simon Gross, Graham Phillips and Allie Trimm share a smile

Aaron Simon Gross, Graham Phillips and Allie Trimm at the opening night after party for the new Broadway musical 13 held at Opera, New York City - October 5, 2008

Joseph Marzullo/WENN

TAGS: Aaron Simon Gross, Graham Phillips, Allie Trimm, 13 The Musical, Broadway

(6/6) 13 Opening: Elizabeth Egan Gillies, Aaron Simon Gross, Graham Phillips, Allie Trimm, Eric M. Nelsen and Delaney Moro take a bow

From left: Elizabeth Egan Gillies, Aaron Simon Gross, Graham Phillips, Allie Trimm, Eric M. Nelsen and Delaney Moro take a bow at the opening night curtain call for the new Broadway musical 13 at the Jacobs Theatre, New York City - October 5, 2008

Joseph Marzullo/WENN

TAGS: Elizabeth Egan Gillies, Aaron Simon Gross, Graham Phillips, Allie Trimm, Eric M. Nelsen, Delaney Moro, 13 The Musical, Broadway