Not many people can say they’ve played Madison Square Garden on their birthday, let alone their 19th birthday. Just last week, Hailee Steinfeld — yes, the actress nominated orayor an Oscar at age 14 — performed at the famed venue as part of iHeartRadio’s US Jingle Ball tour, less than a year after kicking off her music career.
Speaking to the almost grown-up wunderkind about her acting and…
