Today In Music News: Mastodon Gets Its Own Beer, Mariah Worries She Let Us Down, Beck Gets Chatty and Iggy Gets Grumpy

Your daily dose of national music news for Thursday, July 9, 2009... Mastodon is getting its very own premium lager!  Too bad it's only a limited run of 200 bottles. Mariah Carey is worried that she let people down with her horrible rendition of "I'll Be There" at Michael Jackson's long and over-the-top...