Must be almost summertime in Chicago! How can you tell? The concert announcements are coming thick and fast now. Riders On The Storm (The Doors of the 21st Century) will be appearing at the Park West May 14th, Slaughter will play Austin's in Libertyville Saturday May 19th, Ozzfest 2007 will hit town June 10th at the First Midwest Bank Amphitheatre and June 12th at Alpine Valley, Tool June 27th at the Sears Centre in Hoffman Estates, Def Leppard/Styx/Foreigner will play the FMBA June 30th, , Poison/Ratt/White Lion July 17th at FMBA and Nickelback/Staind at Alpine July 21st. Other shows from Asia, Deep Purple, Ted Nugent, 3 Days Grace, Jethro Tull, Shaw/Blades, Peter Frampton, Roger Waters, Michael Schenker, Pat Benatar and Dream Theatre have all been announced recently. Check the concert calendar at www.wlup.com for the complete info and tickets and keep it locked on the Loop for more breaking news.