Harry Styles wants to cover his back with one big tattoo.

The One Direction lothario already has a large collection of ink scattered across his arms and chest, but plans to take things to another level by sitting for an entire back piece, turning to Los Angeles based artist Freddy Negrete for advice on the idea.

Freddy told the Daily Star newspaper: ''He just can't seem to stop tattooing at the moment, but he's getting worried they're all too front-heavy so it's definitely his back we'll be concentrating on.

''The whole thing could take months.''

The tattooist also thinks Harry, 19, will continue his Hebrew-themed designs after having his sister Gemma's name etched into his arm in the language.

Freddy added: ''Harry will probably have more Hebrew lettering. He already has his sister's name in Hebrew on his arm and he loves it ... He talks right through [being tattooed] and is always joking.''

Since getting his first tattoo in 2012 - five stars to present himself and his bandmates Zayn Malik, Louis Tomlinson, Liam Payne and Niall Horan - Harry has sat for more designs including a ship, a shamrock, place names, a heart and a pair of birds on his upper chest.

While Harry may love his ink, his mother Anne Cox is said to be ''worried'' about her son's ever-growing collection.

A source previously said: ''Harry's mum is worried his tattoo collection is getting out of hand. She thinks he's getting addicted to sitting in the artist's chair.

''She's concerned about the lasting effects of the scribbles all over his body and thinks he could live to regret some of them.''