Visitors of the forthcoming marketplace will have access to limited-time discounts on a various Live Nation events. "It isn't clear exactly when GrouponLive will go fully live (pun intended), although the companies said they're on schedule for the site to make its debut in time for the summer concert season," TechCrunch reports. As the press release explains, the deal is largely due to Madonna manager, angel investor and Groupon advisory board member Guy Oseary, who has worked with Live Nation through his role as artist manager and event promoter.