Credit: WeirPhotos/Splash News, Jen Lowery/Splash News Photo: Selena Gomez vs. Rihanna: Who Rocked the Blue Lipstick Trend Best?

Selena Gomez and Rihanna may be the hottest Smurfs, we mean, stars, we've ever seen. With the two famous singers rocking a similar shade of blue lipstick recently, we need your expert opinions, pop culture experts.

Rihanna made her bright makeup statement while arriving to the River Island launch event in London, England on September 10. She paired the look with a black and white jacket, dark jeans, and, in true RiRi fashion, a see-through mesh top.

But Rihanna’s blue pout reminded us of the time Selena puckered up with blue lipstick at Perez Hilton's Blue Ball Birthday Celebration in Los Angeles back in 2011. For the party, SelGo dressed as a peacock, wearing a cobalt dress and a feather in her hair.

Take a look at these gorgeous starlets getting creative with their smooches. Who do you think rocked the look the best? Weigh in below!