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Leo Mandella

Leo Mandella, known online as Gully Guy Leo, is a British fashion creator, DJ and radio host whose outfit photos grew into brand campaigns, club sets and a foundation.fm show.

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Leo’s happenings, collected from public sources, plus their backstory and Starbook, where fans write.

Known for

Overview

Also known as: Gully Guy Leo / @gullyguyleo
From: Warwick, England
What they do: Fashion creator, DJ and radio host
How it started: Supreme drop-day outfit photos around 2016
Early milestone: Converse One Star campaign, shot in 2017

Mini bio

How it started.

Leo grew up in Warwick and found an audience through streetwear. Around 2016, they began posting Thursday drop-day outfit photos outside Supreme’s Soho shop, as recalled in their 2026 Proper interview.

The One Star chapter.

A Converse campaign took Leo from outfit posts to a much bigger stage. Recalling the shoot for Hypebeast in 2021, Leo dated the call from their manager to 2017: Converse wanted them in New York for the One Star campaign. Seeing their face on London buses became a memorable marker of how far they had come.

Finding a voice on air.

By the start of 2024, Leo was hosting a foundation.fm show and DJing fashion-week parties, as documented by Fashion Radio. The station’s archive now brings together guest conversations and club selections, including a 2025 episode with Hugo Chegwin and ShaSimone and a 2026 show with Nori.

Making things with brands.

In 2026, Leo appeared in Reebok’s The Give Back and became Yakosaka 777’s first guest collaborator. The denim collaboration added heat-sensitive pockets to jeans, trousers and a jacket, with fewer than 50 pieces across the range.

Creditschronological, newest first

Fashion and campaigns

2026LM × Yakosaka 777First guest collaborator; heat-reactive pocket design
2026The Give BackSupporting cast in Reebok’s campaign film
2017Converse One Star campaignCampaign face

Radio and live sets

2026Leo Mandella & FriendsHost and DJ with Rickinzi and Emzie
2026Antidoto Club, RazzmatazzDJ
2025Afternoons with Hugo Chegwin and ShaSimonefoundation.fm host
2024The NightshiftDJ at ASOS and Mixmag’s Colour Factory party

Quotes

When something feels organic, it’s wearable.Leo Mandella, Proper Magazine

Discussing what makes a good fashion collaboration in the interview published on 24 July 2026.

Trivia

Leo’s preferred cap to pair with white Reeboks is a New Era 59FIFTY, according to their Proper interview.
In the same interview, Leo picked gum soles over ice soles and suede over leather.
Leo told Hypebeast they still wore A$AP Nast’s first Converse collaboration in 2021.