Forget subtle nudes or classic reds, the Essex girl went all out with a bold bubblegum pink number.
Lydia showed off her cute look on Instagram, which was especially created for filming the Full Moon party that we'll get to see on TOWIE this Sunday (1 March).
At the beginning of the year, the reality TV star attended the original Full Moon party in Thailand, so no doubt she's a pro at this island-style partying by now.
Leaving her lipstick as the main focus, the rest of Lydia's make-up consisted of subtle contoured cheeks, fluttery falses lashes and groomed brows.
But what we loved most were her brilliant Barbie style smackers.
If you want to get involved, try Collection's Lasting Colour Lipstick in Bubblegum 6, (£2.99). As well as delivering an intense, high-pigmented colour, it lasts for hours and is a penny-saving price!
Or, if you're not feeling quite so brave, Barry M's Lip Gloss Wand in Bubblegum Pink, (£4.49), is a slightly more subtle number that will keep your pout glossy and glam.
Make just like Lydia and finish off with a super pretty flower garland round your head - we love this beaut number from ASOS, £10.
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