Well, all of them except for Niall Horan, that is, who currently remains tatt-less because of his alleged fear of needles! Aw!
Think you can guess which of the tattoos (above) belong to Zayn Malik, Harry Styles, Louis Tomlinson and Liam Payne???
Louis Tomlinson, Compass Tattoo
Zayn Malik, Zap! Tattoo
Harry Styles, Sparrow Tattoos (on chest)
Liam Payne, Chevron Tattoo
Harry Styles, Hebrew Tattoo (of his sister Gemma's name)
Zayn Malik, Yin-Yang Tattoo