Rihanna's blues: Rihanna's current Loud tour struggled to make noise as reports swirled that the singer was being urged to cancel tour dates in response to poor demand. Disappointing sales and canceled shows on her previous Last Girl on Earth tour fueled speculation amplified by downbeat reports of potential red ink grosses in major markets via the New York Post and other outlets. Meanwhile, Live Nation overlord and veteran music mogul Irv Azoff fired back, telling online music pundit and legend in his own mind Bob Lefsetz that the prospects were rosier, citing solid overseas sales in particular.