Ke$ha wears blue lips both before and during her performance at Casio's Shock the World 2010 event. Photo: Getty Images | AP

Ke$ha flaunted her baby blues on the red carpet of Casio's Shock the World 2010 event Monday evening – her baby blue lips that is.

As the new face of Casio's Baby-G women's watches, the sassy songstress matched her mouth to the light blue timepiece she sported on her left arm. Way to be a company gal!

While the blue lip trend may not be for everyone, it did make an appearance on the runways last Fall at House of Holland and Paul Smith Women, while Balenciaga took blue paint to the eye brows at their Fall 2010 runway show.

Additionally, Vogue Italia recently cited the cool hue as an option for "a very special evening," that is if done the right way which they describe as "deep and very glossy."

If you're going to go blue, do as Ke$ha does and keep the rest of your makeup to a minimum. Vogue Italia suggests using a foundation that has an illuminating effect on your skin, providing an even canvas to allow that pout to (don't stop, make it...) pop.

While the 23-year-old may have taken a beauty risk, she kept her style simple in in Topshop's black one shoulder pleat tunic, Ally boots and Freedom For Topshop cuff.

It's really a shame that Katy Perry already snagged the role of Smurfette in the upcoming flick based on the beloved cartoon series, we think blue really suits Ke$ha.