Well, now that you mention it...
While checking out pics of Miley Cyrus performing with a variety of inflatable objects at London club G.A.Y. over the weekend, somebody with the Instagram account @f--kjerry couldn't help but notice that the 21-year-old's knee bears a striking resemblance to...Seth Rogen?!
To prove it, the person went so far as to post a shot of Cyrus on stage with an inset of the middle of her leg.
"Apparently my knee is my #MCM @Sethrogen evil twin," the singer tweeted to the Neighbors star along with a link to the photographic evidence.
Rogen, in turn, replied—and couldn't resist the urge to throw in a reference to marijuana.
"@MileyCyrus you know why knees are the best body parts? They're joints! (I'm sorry. I had to)," he joked.
"just FYI what I said the other night at G.A.Y. had nothing to do with Liam. I was just trying to rile up the boys," she wrote.
"I don't usually respond to tabloidy stuff but this isn't something I want being spread around. It sounded hateful but not what I meant," Cyrus added. "I never want hateful things being said about those I care about... I was just tooooo turnttttt up."