Peters first appeared in the NBC series "Smash" in the March 2012 episode "The Workshop", as Leigh Conroy, Ivy's mother, a retired Broadway star, who feels competitive because of her daughter's blossoming career. She visits the workshop and sings "Everything's Coming Up Roses" (from "") at the urging of the workshop cast. She also appeared in the season 1 finale, "Bombshell" (May 2012), to celebrate Ivy's presumed role as Marilyn, in "The Parents" episode (April 2013), where, as Leigh, she sings an original Marc Shaiman and Scott Wittman song, "Hang the Moon", and in the episodes "Opening Night" (April 2013) and "The Phenomenon" (May 2013).