Singer and style-agenda setter Sky Ferreira's got us thinking: maybe we should invest in some iridescent glitter? To recreate Sky's look, simply dab glitter on to a base of Vaseline or Elizabeth Arden Eight Hour Cream with your finger. For a colored base, use cream or crayon eyeshadow first. Glitter instantly widens and brighten eyes, gives a touch of Elvis-in-the-'70s glam, and even better, it comes out rainbow bright on camera. Looks good in the flesh and even sparklier on Instagram? What a winner. 

If you're in the market for some glitter try StarGazer, Barry M, Bellapierre or MAC's loose glitter.