Tonight's line-up includes Jack Johnson and Ben Harper and The Innocent Criminals at the Marcus Amphitheater.

After listening to some clips, Jack Johnson comes off as a soft, acoustic bluesman. I wonder how that will carry in the 20,000+ amphitheater. Johnson't co-headliner, Ben Harper should have no trouble communicating with a large audience. He is all over the map infusing rock, funk, blues, and reggae into his music.

An interesting tidbit is Johnson and Harper performed together on Last Call to be aired tonight. I wouldn't be surprised to see them together at Summerfest.

Folk rock continues with Willy Porter on the Piggly Wiggly Stage. Willy's a local guy who can just fly his fingers all over a guitar. That's who I'll be seeing tonight.

Steve Winwood's career spanned a generation. He was a teenager with the Spencer Davis Group (how can you not love "Gimme Some Lovin'") in the 60s and had a successful solo career in the mid-80s ("Higher Love" and "Finer Things"). He has an album out, and he'll performing at the new North Shore Bank Landing.

LL Cool J will knock you out at the Briggs & Stratton Big Backyard.

Blues great, Buddy Guy is at the Harley-Davidson Roadhouse, and Default play the Miller Lite Oasis.

All the acts mentioned, except for Jack Johnson and Ben Harper, start at 10:00. Johnson and Harper start at 7:30. So if they end early enough you can still catch someone else. Being able to wander around and listen to a whole bunch of music makes Summerfest really special.

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