“The Greatest Show on the Green” has returned to the Valley this week. The Phoenix Open’s main event will start on Wednesday with the Annexus Pro-Am and will end Sunday. And while there’s plenty of golf sightings to be had – 2016 winner Hideki Matsuyama is back to defend his title – we all know golf isn’t really why people love the Phoenix Open. Rowdy parties at the 16th hole, the annual tumbles of drunk sorority girls in heels, and major music acts in the Birds Nest provide entertainment galore for those of us who can’t quite muster the enthusiasm for thwacking a little white ball toward a hole in silence.