The 'R.I.P' singer braved the cold in London, wearing a very revealing midnight blue gown with plunging neckline and thigh high slit.
Rita was going bra-less in her frock and seemed a bit worried about having a wardrobe malfunction as she covered her chest with her hand as she walked into the venue.
Rita arrived at the press launch holding the arm of The Voice co-coach Ricky Wilson of Kaiser Chiefs, who looked dapper in his smart suit.
Inside, the duo posed on the red carpet alongside fellow coaches Sir Tom Jones and will.iam, as well as hosts Marvin Humes and Emma Willis.
Emma went for a very different red carpet look to Rita, stunning in a floor-length black jumpsuit with a high neckline.
It's about to get very busy for Emma as she's also presenting the new series of Celebrity Big Brother, which premieres on Channel 5 this Wednesday.
The Voice UK returns to BBC One on Saturday, where we'll see Coronation Street star Kym Marsh's daughter Emilie among the blind audition hopefuls.
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