I would love for the tour dates to show on the sidebar, perhaps with the option to remove the friends list, or now playing friends list and substitute a list of tour dates of the artist that is currently playing. Or maybe a right-click option to view their Facebook page if it has tour dates. It's annoying to find artists and then spend a few minutes trying to see if their going to be coming around my area anytime in the near future. Link it to Facebook, Bands in Town app, Ticketmaster, their main web page, anything!
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