From Emma Watson to Zayn Malik: Here are 7 celebrities most talked about tattoos

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It's no secret that celebrities love to indulge in a spot of body art. From poignant inscriptions a la Emma Watson to Louis Tomlinson's 'Oops!' - it's fair to say that some have more meaning than others. Either way, celebrities such as Rihanna, Zayn Mailk and Justin Bieber cover themselves in creative ...