Jimmy Buffett

At 1:20 in the video, Dan (Jimmy's guitar tech) showcases the Gibson guitar. There's also a picture of Jimmy playing it here: https://timeentertainment.files.wordpress.com/2013/08/143813336.jpg

At 2:05 in the above video, Dan shows the Fender Broadcaster

Jimmy and Mac MacAnally are both using Kempers. I have been in the second row of multiple shows over the last few years and have seen them personally. In the picture, you can see the Kemper on the drum riser. It's right behind the keyboard stand

The picture clearly shows Jimmy Buffett playing a Fender Telecaster Thinline

At 50 seconds into the video, Jimmy Buffett's guitar tech describes how Jimmy acquired the 1955 Martin in France.

Mentioned in this June 1, 2008 Mix Online interview about George Strait's Troubador.

Troubadour, like its award-winning predecessor, It Just Comes Natural, was recorded in Key West, Fla., at Jimmy Buffett's Shrimp Boat Sound studio. (...) "For vocals, Jimmy Buffett has an amazing Neumann U47 and it's George's mic of choice. George has his own U47, but he prefers this one."

In the YouTube video titled "A Tour Of Jimmy's Guitars" on the Jimmy Buffett Official channel, guitar tech Dan Cook confirms that Jimmy Buffett uses an Epiphone Emperor, as he shares stories about the instruments.