Theroux and McDaid 'trade fashion tips'
Justin Theroux is said to be flattered by Johnny McDaid copying his style.
The two stars are engaged to best friends Courteney Cox and Jennifer Aniston and regularly hang out as a group.
Johnny has reportedly begun to change his wardrobe up and is emulating Justin's cool laidback look, which usually sees him in black T-shirts, jeans and biker jackets.
"Before meeting Courteney, Johnny's look was always pretty casual. Courteney and Jennifer are pretty much inseparable and as they started spending more and more time together as a foursome, Johnny began taking tips from Justin's wardrobe, and black is now his staple," a source explained to British magazine Grazia.
"Justin is flattered. He works hard on his look so he's more than happy to give Johnny fashion advice. They've all joked that Johnny is turning into him."
Johnny found fame in British band Snow Patrol, and met Courteney through their mutual pal Ed Sheeran. They confirmed their engagement in June on Twitter, simultaneously posting a selfie captioned "I'm engaged to him!" and "I'm engaged to her!"
It's thought Courteney didn't realise Johnny's fashion sense was evolving until Jennifer highlighted it, much to her pal's amusement.
"Courteney was so smitten with Johnny she didn't notice his changing style at first, but when Jen pointed it out she thought it was hysterical. The girls are happy the boys get on so well but they tease them over their friendship and say those two are the ones going out," the insider laughed.
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