Satyrs are creatures from Greek mythology said to resemble a human with the ears, horns and lower half of a goat. They are known for throwing wild parties, heavily drinking and a fondness for music. Could something like this evolve in nature?
100% of known sapient life came from opportunistic omnivorous scavengers that could be considered invasive species, so you've got that going for you. Considering all wild goat species are mountain-dwellers (where quadripedal is king), it might be a wise move to evolve them from a domesticated breed so they'd have a better chance of bipedality.