Observe, you can clearly see Madonna sucking the youth, vigor and future career from the left hand side of Miley Cyrus' brain during the latter's MTV Unplugged session last night. Miley's tongue attempted to escape and get its host some help, but instead it just ended up being a pic on Madonna's Instagram account - where one of her followers, by the name of fufssss, was totally on to her.

She left the comment "Grow up madonna and leave the disney growing up girls alone!!! U helped britney start acting weird nd now you have miley."

However, s_somewhere had some advice for Madonna (and Miley, as it happens): "Nooo you the queen of pop to be associated with her!!! I understand she wants a wider range of fans but this is not the way. No one should promote this... For gods sake close your mouth it's not even sexy nor provocative."

Listen, s_somewhere, we've tried to tell her, she just won't listen.

For those of you interested in the details of last night's MTV Unplugged performance, E!Online have the following. Best avoid if you're eating your breakfast; there's talk of bottom slapping and "grinding."

"The two superstars performed together for the first time during the taping of Cyrus' MTV Unplugged special in Hollywood, joining forces on Miley's We Can't Stop and Madge's Don't Tell Me. Sure enough, there was a fair amount of bumpin' and grinding between the two envelope-pushing artists, with Miley even playfully slapping Madonna's bum a few times during the two takes. (Yes, in a boon for the lucky folks who got to watch, there were two takes!). Both gals wore Western-inspired ensembles, Madonna in black and white and Miley in blue denim studded with sequins. 'That was pretty f--king cool, you guys,' Cyrus said. 'It sounds super-lame, but as a pop star it's pretty cool performing with Madonna...Today was one of those days that it was really easy to get out of bed'."

The special airs today at 9pm ET/PT on MTV. Consider yerselves warned.