7 years after Holly Willoughby first wore Grenson’s Nanette boots in the I’m a Celeb… jungle, she’s collaborated with the brand to make her own special versions for Celebrity Bear Hunt. Check them out… 7 years after Holly Willoughby first wore Grenson’s Nanette boots in the I’m a Celeb… jungle, she’s collaborated with the brand to make her own special versions for Celebrity Bear Hunt. Check them out…