[2] Young sang lead vocals on the Grammy Award-winning Jersey Boys cast album, certified Platinum by the Recording Industry Association of America.

Young reprised his role as Frankie Valli in Warner Brothers' film adaptation of Jersey Boys, directed by Clint Eastwood and released June 20, 2014.

[8] After moving to New York City, Young worked his way up through the ranks of the theater scene with roles in numerous regional and off-Broadway plays, including the New York-area premiere of Michael Healey's The Drawer Boy with actor John Mahoney; "Charlie" in Julia Jordan's The Summer of the Swans; "Moritz" in the Douglas Langworthy translation of Wedekind's Spring Awakening; and "Claudio" in Rinne Groff's The Five Hysterical Girls Theorem for the Target Margin Theatre.

During his tenure at Jersey Boys, which now has several companies playing worldwide, Young performed at the White House, Carnegie Hall, Radio City Music Hall, the New York City Marathon, New Year's Eve in Times Square, Yankee Stadium and Macy's Thanksgiving Day Parade.

Young's run with Jersey Boys concluded on November 9, 2007,[9][10] followed shortly thereafter by a sold-out-in-a-day solo concert debut at Lincoln Center.

Young's extensive charity work includes frequent appearances with and support of Broadway Cares/Equity Fights AIDS, Cystic Fibrosis Foundation, amfAR, Paul Newman's Hole in the Wall Gang, AIDS Project Los Angeles and the United Service Organization (USO).