If you watch Mac's tribute to the one and only Carroll Shelby, you'll see his talent on display. Davis took the time to sing his Shelby song that he'd written years before, and you can view it ...

"Mac Davis has been my client for over 40 years, and, more importantly, my best friend," said Morey in a statement. "He was a music legend, but his most important work was that as a loving husband ...