Rebecca Loos has revealed that she didn't want to "lower herself" by responding to Sharon Osbourne's catty comments on X Factor: Battle of the Stars.

David Beckham's former PA was voted off the show on Thursday night alongside singing partner James Hewitt.

"I'm not going to lower myself. It is hard to perform when people are booing you but I had to remember why I was there - and that was to raise money for charity," Loos told the Daily Star.

"When they asked me to do The X Factor I was really looking forward to it. Then on the first night we got booed and my heart sank. It was very hard to carry on but we did it for charity."