17-year-old Lorde felt honoured and emotional when she heard that Bruce Springsteen covered her hit song Royals at one of his concerts.

The rock icon played an acoustic version of the track when playing a show in Lorde's home town of Auckland, New Zealand last Saturday, March 1.

Speaking to News.com.au, Lorde said, "My Twitter went mental. Everyone in New Zealand was like, 'You can't believe what just happened!' It was so exciting. It was the highest honour. He's such an incredible songwriter. I got a little teary. It was very cool.

"It's crazy when someone like that is covering your song. Those words were nothing before I put them into my laptop and started messing around with them in the studio. It's crazy to me they could come out of someone's mouth who is that respected."

Check out Springsteen's Royals cover: