The blonde bombshell showed off her big bouffant at a gig to celebrate her new role.
The 'Mama Do' singer will front Batiste's 2014 campaign and is launching her very own version of the best-selling dry shampoo.
She paired her bouncy blowdry with two different outfits for the small private gig at London's Century Club.
Pixie arrived in a brown button-up dress with monochrome sandals complete with this season's staple chunky heel.
She later changed into a yellow playsuit, from luxe 70s-inspired label Un-Nyé, that showed off Pixie's trademark toned legs, paired with bow-detail flats.
And it wasn't just Pixie's wardrobe that had us swooning. Check out her fluoro pink peepers!
The new variation of Batiste Dry Shampoo, £2.99, aptly named 'Batiste Pixie Lott' lands in Boots and ASOS in the next few weeks.
With notes of bergamot, lemon and sandalwood, we reckon the fresh new scent will be perfect for hazy summer nights. It even has Pixie's face on the bottle!
Now how can we go about nailing a job like that? Anyone?
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Watch Pixie's music video for 'Nasty' below: