Ellie Goulding went into "nervous robot mode" when she performed at the royal wedding reception of Princess Eugenie and Jack Brooksbank last year.
The 32-year-old songstress - who sang a medley of covers and her own tracks at the 2011 wedding of Prince William and Duchess Catherine - performed her greatest hits for Eugenie's guests at a star-studded fun-fair themed party hosted by her parents, Sarah, Duchess of York, and Prince Andrew in the grounds of The Royal Lodge in Windsor in October 2018.
Ellie admitted on UK TV show 'This Morning' on Wednesday (15.15.19) that she maintained a very "professional" mindset before she got on stage, and just wanted to perform her songs as best she could "and then go".
Being interviewed by hosts Phillip Schofield and Holly Willoughby, she said: "I'm always nervous at the best of times, I'm just quite a nervous person but I try and use it to my advantage. I think with those two particular gigs I just thought, 'God I have to have to be professional, just do the job, they want to hear the song, they want me to sing them well, and then go.'
"Sometimes I go into professional, robot mode and just got up there, perform the songs, do them as best I can and then go, and hope they had a good time. I'm good at doing that thank god."
Ellie decided to take a break from performing and recording after touring her third studio album 'Delirium', which was released in 2015, as she was suffering from exhaustion.
The 'Sixteen' singer needed to step out of the spotlight because her career had started to take a toll on her mental health.
She said: "In the beginning it was all really new and exciting, and it was just like a new world. I think it's the combination of self-confidence, you can often lose that in yourself, the touring the travel is just really tiring and it can really take its toll on your head."
The 'Close To Me' hitmaker also explained that being on the road for long periods of time was hard to "take on" by herself.
She added: "I realised I was the one on stage, and had my band, incredible team and my team around me, but really at the end of the day it was me up there, so it was hard to take on and a lot by myself. I signed my record deal when I was really young and then it was my life in my 20s."