Gregg Allman postponing book tour for heart tests

FILE - In a Sunday, April 25, 2010 photo, Gregg Allman performs with the Allman Brothers Band at the New Orleans Jazz and Heritage Festival in New Orleans. Allman's manager says Allman underwent a successful liver transplant surgery Wednesday morning, June 23, 2010 at the Mayo Clinic in Jacksonville, Fla. (AP Photo/Gerald Herbert)

April 27, 2012 7:27:51 AM PDT
Poor health hasn't robbed Gregg Allman of his sense of humor.