Hairdresser's. Probably photoshopped.They love a bit of irony those ad creatives. Not about themselves mind.
You could argue that it's grammatically correct. It's a salon, which belongs to the hairdresser, therefore the salon is the hairdresser's.
@MessenJah started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
You could argue that it's grammatically correct. It's a salon, which belongs to the hairdresser, therefore the salon is the hairdresser's.