The British singer attended the Golden Globes for her first public appearance since becoming a mum last year, where Skyfall won in the Best Original Song category.
Before the ceremony, the 24-year-old music star admitted to E!'s Ryan Seacrest on the red carpet that she was worried about living up to the "responsibility" of providing a 007 song.
"I got the script a long time ago and it took quite a while to convince me to do the actual song," she said.
She said of recording the track - which has also been nominated for an Oscar - with a 77-piece orchestra: "It was absolutely amazing. I was very pregnant and I was very emotional. It was very exciting, epic and I felt like Frank Sinatra."