"I don't go to nightclubs terribly often, but I bet I would if more of them played this song, featured in Microsoft and Rare's 2005 Xbox 360 launch title, Perfect Dark Zero.
It's titled "Limelight", and plays within the nightclub during the second mission. It's a bubbly, happy-go-lucky tune that gels nicely into the background and would be right at home in an actual nightclub, even if it had to be one from the 60's. It has this sort of sparkly, elegant radiance to it that leads me to hesitate before calling it an optimistic version of Guile's Theme, since it really could fit into the context of any situation provided it's a positive one. Oh gosh, don't tell me I've started a meme..." (Michael Urban, OnlySP.com)