Jennifer Lawrence was star-struck by Lorde.

The 24-year-old actress has confessed she ''freaked out'' when the 'Royals' hitmaker visited the set of 'The Hunger Games: Mockingjay, Part 1' after she penned the song 'Yellow Flicker Beat' especially for the movie.

Jennifer told Fashion & Style: ''It was so cool, oh my god! The whole set freaked out, everyone stopped and it was like, 'Be normal! Be normal! Be cool!'''

The 'American Hustle' star was so impressed by the 18-year-old songstress' offering that she admitted it gave her ''goosebumps'', adding that the soundtrack has captured her character Katniss Everdeen ''magically''.

She explained: ''She captured [Katniss] so magically that it was a really amazing thing to listen to, so I think Katniss would be a huge Lorde fan.''

The pair were even spotted hanging out together at the film's world premiere in London's Leicester Square on Monday night (10.11.14).

Lorde - who left the after party laughing and joking with the pretty actress - shared her excitement prior to the event on Twitter.

She wrote: ''going to my first movie premiere tonight for mockingjay (sic).''