The Grammy-winning pop diva - turning 60 this June - hung out with fellow former judge Randy Jackson and current host Ryan Seacrest to tape a mystery segment
The 30-year-old César Award winner s shoulder-length hair appeared noticeably darker when she attended the Oscars Nominees Luncheon earlier that same day.
The 30-year-old Twilight alum will next compete for the best actress trophy at the postponed 27th Critics Choice Awards, which will air March 13 on The CW/TBS
The 30-year-old Twilight alum s moving performance as Princess Diana in Spencer was notably left off the list of nominees for the female actor in a leading role trophy