The 27-year-old is however glad that she has a team of professionals to help her look the best, reported Contactmusic.
"Of course I want to look good when I do the show - I'm in my lingerie, but I've got a team of people behind me who choose a flattering outfit. I know they have my back," she said.
Despite was back to her slender frame in just 16 weeks after giving birth to her daughter Dixie last year, whom she shares with Kings of Leon rocker Caleb Followill.