That's rum and sprite zero actually.
Strangely, I have developed a taste for rum with the sprite zero instead of the regular sprite. I mixed with regular sprite recently, and it tasted... weird.
I love this stuff.
(too much, some times. Does alcohol make anyone else stay up until crazy hours of the night? Everyone else claims that alcohol puts them to sleep, but me? no, I'm up all night, sending out crazy emails and IM's and such. Maybe next year will be Project 365 Drunk Haiku Year. Woo!)