Sierra Hull’s positively stellar career started early. That is, if you consider a Grand Ole Opry debut at age 10, called back to the famed stage a year later to perform with her hero and mentor Alison Krauss to be early. She played Carnegie Hall at 12; at 13 signed with Rounder Records and issued her debut, Secrets, and garnered the first of many nominations for Mandolin Player of the Year. She played the Kennedy Center at 16 and the next year became the first bluegrass musician to receive a Presidential Scholarship at the Berklee College of Music. As a 20-year-old, Hull played the White House.