By now, thanks to Facebook mostly, most of you have heard that one third of the legendary Hip Hop trio Beastie Boys — Adam "MCA" Yauch — died this morning in New York City after a three-year battle with cancer. He was 47 years old and leaves behind a legacy to be proud of, with his crucial contributions to music, video and activism.In an eerie coincidence, Northside club Mayday tonight has a scheduled dance party hosted by DJ Mowgli called "Run DMC vs. Beastie Boys," featuring music by both historic crews. The music starts at 10 p.m. and there's no cover. Something tells me there will be a little extra Beasties love from the DJ in light of today's events. Below is the press release about Yauch's death from the Beastie Boys' longtime publicists at Nasty Little Man.R.I.P. MCA.