Popping was originally danced to funk music which was around at the time of popping's invention and rise to prominence in the late 70s and 80s.
However today the music it is danced to can be much more diverse. From electronica, hip hop, rap to instrumental.
The reason that there is so much choice is because the most important thing is a strong backbeat, on a normal 4/4 rhythm.
There is a lot of music that can fit into this category. The strong backbeat is often what a popper will pop to, though they may also like to pop on every beat as well.
Some classic tracks are "So Ruff So Tuff" by Zapp and Roger or "West Coast Poplock" by Ronnie Hudson.
Really like locking, you should go with the music that you like as then you'll be more likely to enjoy your dancing this way.
Once you've watched a handful of videos of the top poppers around, you'll get an idea of the type of beat the music needs to have and that you can pop to.
Once you have a feel for what type of music works well with popping, it really is up to you.
Some people even create their own beats, the important thing is that the music and dance go together as they are inseparable.
On the next page: Famous Poppers