Two big music festivals are happening this weekend in the Chicago area, and there's plenty of music to go 'round. First, if you get yourself over to Fitzgerald's in Berwyn tomorrow afternoon, you can experience the main event of the Luau by the Lake festival: a 12-hour show/luau featuring two music stages, over a dozen performances by various exotic artists (such as King Kukulele and Los Straightjackets), an aloha attire contest, and much much more. If you can't make it out to the 'burbs, you can enjoy the Folk and Roots Festival in Welles Park, which will feature loads of musical and dance performers, dance lessons throughout the day, and performances by the staff of the nearby Old Town School of Folk Music. Both festivals run through Sunday; see their respective Websites for full details. (And for you go-go enthusiasts, both festivals will feature performances by the World Famous Pontani Sisters.)