On Friday night, R. Kelly was in Detroit, MI, getting his new “12 Nights of Christmas” concert series jumping off, when his happy Christmas atmosphere turned into something altogether different and the fans loved it. **SCROLL TO BOTTOM TO SEE THE VIDEO**

Typically, Christmas time is the time of year where folks are singing along to Nat King Cole about “chestnuts roasting on an open fire” and such…but instead, an eager female fan took it up on herself to surprise R. Kelly with a different type of ‘chestnut special,’ if you catch our drift.

Now to the fan’s credit, she was initially enticed by Kellz to get her freak-on with him, but it looks like things were moving too slow for her, so she turned it up a notch, well on second thought, she turned up about 20 notches.

The thing that made this video clip even more hysterical is R. Kelly’s reaction after the fan gave him the shock of his life, LOL. Check it out below (via TMZ)…

R. Kelly’s new “12 Nights of Christmas” album is available now. You can check it out here.