The big music festival in Grant Park kicks off today and while there are the requisite mega acts like Paul McCartney and Metallica to draw the crowds, there will be smaller, up-and-coming acts working hard to catch your attention on the many side stages throughout the weekend. Writing for the Chicago-based website Consequence of Sound, freelance music journalist Jeremy Zerbe has come up with a list of 10 lesser known artists that you should be sure to check out over the weekend.(Flickr/swimfinfan)