Rihanna just launched her new lipstick collaboration with Mac Cosmetics called Riri Woo. This is the signature red lipstick that her makeup artist has been using on her. This is one of my favourite red lipsticks to use on all my clients. Here's a little video showing Riri Woo and how fab it is. If you're thinking about getting it and making this your staple red lip, I totally recommend. However, the Riri edition did sell out. But the original colour from Mac is actually called Ruby Woo so you can still get that anytime. Enjoy!