Man would I love to while Demi is performing a concert and in the middle of one of her song run onto the stage. Then grab her, rip off her pants and bang the SHIT out of her in front of all her young fans.
Also hold the mic next to her ass a few times to give it a good spank, so everybody hears that delicious smacking sound. Demi is such a good role model to all the tween girls in the audience watching wide-eyed in amazement as their favorite singer gets dicked from behind. The whole thing is being shown on the huge HD screen behind the stage, so *everybody* in the building can see it clearly.