The salon was open from 4pm and guests were able to book 30 minute slots free of charge. Situated on central London's Lexington Street, the event brought in some of the capital's best hair and make-up artists to create classic Halloween looks, as well as looks inspired by popular culture.
Visitors could opt for prosthetics to make the looks extra gory, or could simply go for a quick Halloween fix. A mixology bar was on-site, offering guests spooky cocktails for them to sip on whilst they transformed into their Halloween alter-egos.
Tom Rainsford, brand director at Giffgaff, said: "We're an online-only business, but that doesn't mean that we only need to exist online. We're really passionate about living our values in our virtual world, as well as living them in the real world."
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