Miley Cyrus just made the ultimate dig at Taylor Swift on Instagram

Miley Cyrus and Taylor Swift are very different people these days from when they started out as country music's sweethearts back in their teens.

While at one stage they definitely seemed to be friends, neither of them have made any secret of the fact that they don't see eye to eye any longer, and Miley Cyrus took the opportunity to poke some fun at her fellow pop star on social media today.

The Wrecking Ball singer headed to Instagram to re-post a faceswap of Taylor and Justin Bieber with the caption "…they look like a cute lesbian couple."

We couldn't help but laugh, though somehow we doubt Taylor's reaction was quite as positive. 

Back in 2008 and 2009, Taylor and Miley's friendship was the envy of tweens the world over, especially when they duetted to Taylor's hit Fifteen at the 2009 Grammys.

Fast-forward a few years though, and the singers had definitely grown apart, with Miley subtly criticising Taylor's outfit choice at the 2013 VMAs, saying that attendees were meant to have fun and were not "supposed to show up in a gown, Vanna White-style."

Plus, who can forget Taylor's reaction to Miley's Blurred Lines performance with Robin Thicke that very same year?

If the girls were on shaky ground before that, we reckon that awards show was certainly the last straw. Of course, this isn't the only badly-hidden feud Taylor has with a female pop singer, given that she and Katy Perry spent months slinging insults back and forth last year following a disagreement over backing dancers.

In a tell-all interview with Rolling Stone, Taylor said she was "straight-up enemies" with another female star, and though she didn't name Katy directly, it was almost certainly in reference to her. 

"She did something so horrible," Swift says. "I was like, 'Oh, we're just straight-up enemies.' And it wasn't even about a guy! It had to do with business. She basically tried to sabotage an entire arena tour. She tried to hire a bunch of people out from under me."

As is to be expected, Taylor has not made any response to Miley's social media dig as yet, but you can bet there is some serious shade throwing going on behind closed doors…