Jennifer Aniston has obviously had a positive effect on her new man Justin Theroux.
The A-list pair have been dating for several months now.
And perhaps due to the influence of his high-profile girlfriend, who is always immaculately turned out, the Hollywood actor and screenwriter has undergone a ‘male makeover’.
Only last month he was sporting an unshaven look and favouring gothic-style clothing.
But for Jennifer’s Walk of Fame ceremony, which marked their first public outing as a couple, Justin swapped his unkempt look for a clean-cut, tailored appearance.
This seems to be a trend for male celebrities, many of whom have recently smartened up their act – often, like Justin, motivated by a new romance.
Take Shane Warne, for example. A rugged, typically alpha male, the cricket player lost 25 lbs and ditched his laddish looks in favour of a more refined style after meeting new love Elizabeth Hurley.
He polished his appearance to such an extent that Elizabeth was forced to take to Twitter and quash claims that he had started wearing make-up.
And they're not the only ones. See if you can spot the difference with other stars such as Ashton Kutcher, Jamie Hince and Ricky Gervais.