Music is out of place...

I think you have to put the musical selection into the context of when the movie came out.

The horror genre, as a whole, was revitalized and brought back from death, by the explosive popularity of Scream. It ignited a whole sub-genre of films, which were targeted to a younger, fresher, newer generation of fans. The genre knew it would always have it's fickle die-hard's in its corner, but in order to bring revenue back to horror production, they knew they had to target the youth population, with their disposable income.

I think the music selection in this film, therefor, is due to the fact that it was released within that genre time frame of attempting to bring a level of "youth" and "hipness" to the film. It's a ploy that is still used today, if you look at the scores of more modern horror films, especially remakes.

I also think it ties into the fact that this is a remake of an old Vincent Price movie, made by the same production company that did the remake of House on Haunted Hill and later House of Wax, whose entire goal was to fully modernize Price's films.

HOHH and House of Wax both use a more modern, "hip" soundtrack, as well as pivotal, albeit sometimes stereotypical, African American characters.

The same way you want to pull in a younger audience by the score selection, you pull in a more ethnically diverse crowd by adding in non-Caucasian characters. Horror used to be a primarily "white" genre, and over the past 15 years, a lot more cultural diversity has been added in, in order to give a wider audience base characters to relate to.