There is a groovy upbeat bass line. In this live cover I heard there are also saxophones and trumpets, but I'm not sure these instruments are there in the original version.
Festival horn sections are a trap. Every cover band bolts brass onto everything, so the sax and trumpets tell us nothing about the original. The bass line is the real clue and you clearly still hear it in your head. Hum it into Google song search or SoundHound, both take humming and both are weirdly good with bass lines. The LimeWire link would not play on my end either, so a short clip on YouTube or Vocaroo would let people here actually listen. Give us eight seconds of that bass and this thread gets closed fast.