The 'Slow Down' singer proved cobalt peepers don't just belong in the 1960s as she mingled with fans in New York on Saturday (29 June).
Get her look by lining your lash line with Avon Glimmersticks Eye Liner in Starry Night Blue, £6, before blending MAC Mineralize Eyeshadow in Blue Flame, £17, across your eyelids.
The trick behind Selena's look is to break up the colour by adding a black kohl pencil, such as Topshop Eye Kohl in Coal, £4, along your waterline. This will darken the whole eye, resulting in a sexy, sultry vibe.
Finish by adding several coats of PIXI Lash Booster Mascara in Blackest Blue, £12.50.
Make like Selena and keep the rest of your make-up simple, adding a subtle wash of pink to your lips and cheeks.
Electric blue peepers - done!
What do you think of Selena's blue eyeshadow look? Let us know by commenting below as the best comment across the site each week wins £50!
Watch Selena's sultry music video for 'Come & Get It' below: