The 'X-Factor' winner is currently spending her days holed up at a recording studio in Los Angeles, preparing tracks for the follow-up to her hit debut 'Spirit'.

The pop star is so determined to make the album her best yet that she turned down an invitation to visit the White House to focus on her music.

"Leona was thrilled to be invited to dinner by Obama. She really wanted to meet him and his wife Michelle, who is a big fan and has her Spirit album," a source close to the singer told Britain's the ‘Mirror’.

"They both think she is a strong, inspirational and talented young woman who is a fantastic role model for children. They would love her to get involved in some of their charity projects. But it was really unfortunate that it clashed with her tight schedule to get her second album done," the source added.