The singer wore bling shades and a white dress and jacket as she walked up the red carpet outside London’s O2 Arena for the latest auditions.
Fellow judge Tulisa Contostavlos arrived wearing a turquoise patterned mini dress with skater skirt detail and studded high-heeled ankle boots.
Rita – whose hits include Hot Right Now with DJ Fresh and R.I.P. with Tinie Tempah – is the latest guest judge and follows Geri Halliwell on to the panel until a permanent fourth member is appointed.
Kelly Rowland made clear last month she would not be returning, and talks with Dannii Minogue to engineer a return stalled.
Hundreds of people turned up to see the judges arrive as they audition contestants for the next series of the ITV1 show.
Take That’s Gary Barlow ditched his usual black jacket today for a pastel blue linen number, coupled with a grey t-shirt. And Louis Walsh turned up in aviator shades as he attended the auditions for the series which returns later this year.
The judges posed for photos on the red carpet and met fans as they made their way into the O2.