Main Entry: disc jockey
Variant(s): or disk jockey
Function: noun
: an announcer of a radio show of popular recorded music; also : one who plays recorded music for dancing at a nightclub or party

Yet…

Taking a road trip? The Zune® Car Pack gives you everything you need to be your own DJ, listening to your tunes through your car stereo while keeping your Zune charged.

So, with the Zune Car Pack (which works with the new Zunes, natch), I’d be able to DJ at nightclubs or parties? If you say so, Microsoft! Somehow, an auto-tuning FM transmitter, charger and magnetic clip don’t really seems as impressive as a full-on Pacha equipment checklist.

Zune Car Pack [Zune.net]