Playbill.com is marking the special day with a collection of videos from his appearances in Spring Awakening, American Idiot and in concert.
John Gallagher, Jr. - "Fan Letter."
John Gallagher, Jr. - "Let Me Come Home."
Spring Awakening's performance at the 2007 Tony Awards:
"The Bitch of Living" music video:
John Gallagher Jr - "The Goodbye Song" - Joe Iconis Jamboree.
"Wake Me Up When September Ends" acoustic.
"All That's Known."
The cast of Spring Awakening performs "Touch Me" on "The View":
Gallagher, Jr. with original cast member Lauren Pitchard singing "Blue Wind":
"Wake Me Up When September Ends" on "Regis & Kelly."
The cast of Spring Awakening performs a medley of songs from the musical on "Good Morning America":
American Idiot performs on "David Letterman."
Spring Awakening's performance on "The Late Show With David Letterman":
The cast performs "My Junk" at Broadway in Bryant Park:
John Gallagher, Jr. and Pritchard sing "Don't Do Sadness/Blue Wind" at Broadway in Bryant Park:
American Idiot cast performance at 2010 Tony Awards.
The cast sings "Totally F*cked" at the Virgin Megastore in Times Square:
Spring Awakening cast members perform "The Song of Purple Summer" at Joe's Pub: