TMZ reports that the singer was on location at her home in Malibu for two days for the Judges' Houses stage of the singing competition.
© TheXFactorUSA/YouTube
Although temperatures in California are currently exceeding 100°F (37.8°C) , Spears filmed most of the segment outside.
She was joined by guest will.i.am, who serves as a judge on the UK version of The Voice.
The season two premiere of The X Factor USA broke a record for most social media comments.
The X Factor USA continues to air Wednesdays and Thursdays at 8/7c on Fox.
Watch a clip from the show below:
