The X Factor: N-Dubz Tulisa on her first show as judge

Last updated at 07:39

X Factor judge Tulisa Contostavlos has told Newsround she's surprised at how passionate she is about her new job.

She also revealed that she was the V Festival when the first show went out on Saturday.

Her battery died, which meant she didn't get any messages from friends and family about her judging debut until she turned it back on two days later!

Watch the clip to see the N-Dubz star talking to Ricky.