The mother and daughter have been in London with the brand to reveal their products and with a busy schedule of photocalls and presentations in Mac stores and Selfridges, the past 24 hours have been non-stop for the pair.
However, these pictures from their day out prove it was nothing but a laugh a minute...
Kelly looked radiant in a chic LBD and made a good case for buying a colour-popping lipstick this summer. (In case you were wondering, her Mac collection includes a brilliant bright purple shade called Dodgy Girl.)
Sharon kept her press launch style smart and simple in a black suit paired with metallic stilettos.
And speaking of having a blast, we're not entirely sure what sparked this fit of giggles but it might have had something to do with the jacket swap (you probably had to be there...)
Has Kelly got a job with Disney?