The Notorious B.I.G.‘s “King of New York” crown and some love letters written by 2Pac are going under the hammer next month.The iconic pieces of music history are just two of 120 items that will be auctioned off by Sotheby’s celebrating the impact of hip-hop.The crown up for auction was worn by Biggie during his last recorded photoshoot just three days before he was shot dead on March 9, 1997.Spawning the “King of New York” picture, as it came to be known, it’s featured on magazine covers,