With L'Oréal Paris being an official partner of the 2011 Cannes Film Festival, we've already seen L'Oréal girls Cheryl Cole, Diane Kruger and Aishwarya Rai hitting the Croisette - so we knew it was only a matter of time before new kid on the block Gwen Stefani made an appearance.
But no classic glam gown for Gwen - the singer eschewed a dress in favour of this high-shine embellished jumpsuit, with a plunging navel-grazing neckline.
The 41-year-old teamed her belted all-in-one with tight white blonde curls, heavily lined eyes and a neon pink lip.
What do you think of Gwen's daring jumpsuit: hot or not? Let us know below!
See all the Cannes style highlights in our gallery, here: