Sienna MillerSienna MillerSienna Miller has somebody copying her style.

But it isn't Kate Moss or Chanelle Hayes.

It's actually a chap.

And somebody rather close to her.

We know she's something of a style icon, but this really takes the biscuit.

Seriously though, we don't really think her boyf, Rhys Ifans wants to nick her style.

We reckon that it's more likely that he's head over heels in love with the lass.

And their feelings have shone through by the couple actually morphing into one another.

It's all rather sweet really.

Yet they are not the only famous folk to do so.

Have a peep at Si and Rhys, along with the other celebs whose romance has caused them to turn into celeb lookalikes.