Poor Joan Collins was caught out last night in the wind in London. Her wig flew backwards revealing its true self to the world (see top left photo). As we all know, Nicole wears wigs in all her movies since I can remember. And when out in public is known for wearing hair extensions or wigs to hide her thinning hair. Luckily Nicole is aware of what can happen when the wind picks up because she uses extra strong glue or wears a cap to hide her natural mane. The photo of Joan may make her want to be extra careful though from now on, just in case this happens to her on the red carpet. In case you're wondering, in all of the photos above, Nic is indeed wearing wigs. Just enlarge the photo montage if you want to see closer.