We all knew Lady Gaga looked a lot like Amy Winehouse -- but the resemblance is uncanny!

Over the weekend, a black-haired Mother Monster posted a sexy selfie, and fans couldn't help but notice the striking similarity between Gaga and the late Winehouse, who died of an overdose in July 2011.

Along with snap, Gaga, who was sporting Winehouse's signature cat-eye and bouffant for the pic, wrote, "Off to Australia. Will be dreaming of my Aussie Monsters."

The physical similarities between the two have long been noted -- but to see it so clearly is surprising. The "Do What U Want" singer, who naturally has dark hair, has said in past interviews that she dyed her hair blonde at the beginning of her career because so many people mistook her for the British soul singer. It's the nose!

Despite the mistaken identity, Gaga has said she was emboldened by the singer's popularity when she was an up-and-coming artist, looking for a place in the music industry.

"She was my only hope when I was up and coming," Lady Gaga said to Rolling Stone after the British singer's untimely death. "Nobody knew who I was and I had no fans, no record label and everybody, when they met me, said I wasnt pretty enough or that my voice was too low or strange. They had nowhere to put me. And then I saw her in Rolling Stone and I saw her live. I just remember thinking Well, they found somewhere to put Amy"

In other Gaga news, the popstar jumped on the ALS ice bucket challenge earlier today. Clad in a black leotard, a stoic-looking Gaga traded in her bucket for a silver bowl and dumped the bowl of ice over her head without saying a word. Really we'd expect nothing less from the always bizarre 28 year old!