The bar on Charter Square in the city centre, at the back of Debenhams, later became rebranded as another nightspot called Nylon. The area has been completely revamped now in the Heart of the City project.
We pulled together this retro gallery of pictures taken at the Matrix. Can you spot any familiar faces?
![From left, Neil Midgley, Chris Basford and David Roch pictured outside the Nylon Bar, Sheffield, with their most embarrassing songs in June 2007, ready for a party night called Shameless](https://www.thestar.co.uk/webimg/b25lY21zOjNkMTU4Y2E5LWJmNTMtNDM3NS04ZGI5LTc1ZDAzMjE4NWQzYjoxNDRjZWNiYy0zMjUyLTRhODMtOTkyOC1jNjBkZGI0NzA1NGU=.jpg?crop=3:2&trim=&width=640)
5. Shameless selection
From left, Neil Midgley, Chris Basford and David Roch pictured outside the Nylon Bar, Sheffield, with their most embarrassing songs in June 2007, ready for a party night called ShamelessPhoto: Roger Nadal
![Vicki Burton and Andrea Ward at Matrix in February 2002](https://www.thestar.co.uk/webimg/b25lY21zOjQxZGJhZmY1LWUwM2UtNDhkYS1iZGQyLTRiZmIwMDFlZDA2MTpjNmYxMGY2MS04NWJkLTQyZTUtYjljNC0wZjVjOWYxNWRjZGM=.jpg?crop=3:2&trim=&width=640)
![Michelle Weatherstone and Amy Woodward at Matrix in February 2002](https://www.thestar.co.uk/webimg/b25lY21zOjBiNjU5M2JjLTU5YjMtNGFjMi1iMGU1LThhNWMzNzg3OTY2NjoyZjc4ZWY3Ni1mZjEwLTRlMWItOWMzOC1hMTU4Y2NkNDU5MDc=.jpg?crop=3:2&trim=&width=640)
7. Little devils
Michelle Weatherstone and Amy Woodward at Matrix in February 2002Photo: Jon Enoch
![Holly Cope and Ryan Copping at Matrix in February 2002](https://www.thestar.co.uk/webimg/b25lY21zOjNjNDM4YTg1LTZjMDMtNDFiZC1hNTI3LWNmNTY3NWRhY2U0Zjo2YzA5ZDIyMS00MzE1LTQ0ZTctYjU4Ny1jMzNkMTBkMmMwMGU=.jpg?crop=3:2&trim=&width=640)
8. When Holly met Ryan
Holly Cope and Ryan Copping at Matrix in February 2002Photo: Jon Enoch
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