Their 26-piece line is clearly going down well with makeup enthusiasts, as it features everything from pretty pink blushers, bold lipsticks and eyeshadows perfect for a smouldering smokey eye look.
The collection is a two-part range, with Kelly's products being bright or pastel-coloured (inspired by her lilac locks and quirky style), while Sharon's looks feature more bronze tones and deep red hues.
The limited edition collection also includes lip pencils, eye kohls and brushes. It will be available in store from 10 June.
The range sold out within hours and Kelly took to Twitter to express her happiness.
"Can't believe my @MACcosmetics collection sold out online before the sun even came up today thank you so much for your support I love you guys."