Saturday, July 7th, besides being a very lucky date (7.7.07), is Live Earth Day. Live Earth is a massive concert with over 100 artists held across a couple of venues worldwide meant to bring awareness to climate change.

Among those performing are Smashing Pumpkins, John Mayer, The Police, Dave Matthews Band, Melissa Etheridge, Kanye West, Beastie Boys, Madonna, Foo Fighters, Spinal Tap, Linkin Park, Lenny Kravitz, Shakira and tons more.

On TV, in the US at least, the acts will be broadcast on NBC, Bravo, Sundance, CNBC, MSNBC and Telemundo. More details and show times are available here. Online, the event will be simulcast on MSN.