The 32-year-old singer is a judge on the hit US version of the talent show along with Simon Cowell, Paula Abdul and music producer LA Reid.
Asked how she finds working with Cowell and Abdul, she said to UK's Now magazine: 'I'm not there to get in between them - I get a front row ticket to the 'Paula And Simon Show' every week.
'I'm fascinated watching them because they've been working together for over 10 years.
'It's such an honour for me to be part of the panel as an artist in today's music industry.'