American influencer and model Tess Holliday has collaborated with hair care brand Sebastian Professional to launch its #ShapeYourWorld campaign, creating a go-to holiday hairstyle using the brand's products.

The campaign aims to 'inspire and empower' people to 'shape their own look and create the next trend', and Holliday commented 'I’m thrilled to work with Sebastian Professional. I've been using Sebastian for years and as a plus size model, I'm delighted they understand the importance of diversity and individuality in the beauty industry, where so often only a certain type of look is celebrated'.