Techno has been around since the 1980s. It's roots are entrenched in Detroit, but the sound has spawned many different takes on the sound worldwide. The funny part about techno, and dance music in general, is that many forms have American roots, but most Americans don't realize that point - even when it's sitting right in their face.

From Afrika Bambaataa's classic "Planet Rock" to singles from Busta Rhymes, techno is an oft-sampled genre for many smart hip-hop producers, and some of your favorite tracks, be they underground mainstays or Billboard-charting singles, have borrowed from this American-made sound. Let's take a look at the 10 most well-known techno samples in rap tracks, whether you immediately recognized them or not.

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