British rapper Professor Green insists the stars of One Direction should think more carefully before getting inked, branding their tattoos reckless.

The Monster hitmaker, who has several examples of body art, believes Zayn Malik, Louis Tomlinson, Harry Styles, Liam Payne and Niall Horan may regret covering themselves in inkings so readily.

He tells Britain's The Sun newspaper, "It takes me a while to decide what tattoo I want. I sleep on it. You get these young kids like those boys in One Direction who go crazy and start tattooing their bodies all over. You never know, they might like them in a few years or they could be really sad about it."