The Northeast Mississippi Daily Journal has an article on Mac McAnally that provides more information on how he’s doing:

The performer had the heart attack on Monday night in Nashville, according to his publicist, Elaine Schock with Shock Ink.

“He’s actually doing great,” she said during a phone interview from Los Angeles. “They released him from the hospital and he’s going to be back to work really soon.”

Schock said that last week, McAnally was enjoying the spotlight and the red carpet at the Country Music Association Awards, where he tied Chet Atkins with nine Musician of the Year trophies.

“It was so good to see him get the award,” Schock said, “and then this happens a few days later.”

McAnally, 60, is a singer, songwriter and session musician based in Nashville. He’s also a member of Jimmy Buffett’s band, The Coral Reefers.

No decisions have been made about future concerts, but Schock expressed confidence in McAnally’s ability to get back on stage soon.

“He’s doing really good,” she said, “and we’re all happy about that.”

In the same Instagram post that Buffett revealed Mac McAnally’s heart attack, Jimmy Buffett shared a photo of himself with Snoop Dogg on a boat in Miami and revealed that he’ll be Snoop’s songwriting partner in the upcoming film ‘The Beach Bum’:

“No, I am not the beach bum in the movie,” Jimmy says. “He is played by Matthew McConaughey. I am JB, Snoop’s writing partner. Movie is directed by Harmony Korine. Coming soon to a theatre near you!”

OK, by now, most folks have heard about Mac's heart attack, which was a little more serious than a Big Mac attack. He is fine now and stable and should leave the hospital tomorrow, which is great news for all of us. Sadly he will not make the hurricane benefit this Sunday in Tallahassee, but while I was working on the set of "The Beach Bum", in Miami on Tuesday, Snoop said he would try and work up "Little Martha". I will keeep you posted on his progress. No, I am not the beach bum in the movie. He is played by Matthew McConaughey. I am JB, Snoop's writing partner. Movie is directed by Harmony Korine. Coming soon to a theatre new you! Fins Up. JB #ginnjuice #dogg #snoop

A post shared by Jimmy Buffett (@jimmybuffett) on Nov 16, 2017 at 10:43am PST

In a post on Instagram, Jimmy Buffett revealed that Coral Reefer Mac McAnally had a heart attack but is doing well:

OK, by now, most folks have heard about Mac's heart attack, which was a little more serious than a Big Mac attack. He is fine now and stable and should leave the hospital tomorrow, which is great news for all of us. Sadly he will not make the hurricane benefit this Sunday in Tallahassee, but while I was working on the set of "The Beach Bum", in Miami on Tuesday, Snoop said he would try and work up "Little Martha". I will keeep you posted on his progress. No, I am not the beach bum in the movie. He is played by Matthew McConaughey. I am JB, Snoop's writing partner. Movie is directed by Harmony Korine. Coming soon to a theatre new you! Fins Up. JB #ginnjuice #dogg #snoop

A post shared by Jimmy Buffett (@jimmybuffett) on Nov 16, 2017 at 10:43am PST

In an interview with Bestclassicbands.com, The Eagles manager Irving Azoff said that the iconic band and Jimmy Buffett will pair up to play stadium shows next year:

After a warm reception to an Eagles reunion without the late Glenn Frey, a set of stadium dates is being planned for summer of 2018, pairing the best-selling band with party troubadour Jimmy Buffett.

“One word answer? Yes,” the band’s longtime manager, Irving Azoff, told Best Classic Bands. Coors Field in Denver will be one destination, Azoff said, with “an Eagles/Buffett celebration up in the mountains there. We’re just talking about a handful” of stadium dates featuring the two classic artists.

Azoff declined to comment about a possible Eagles tour following the stadium dates, noting that the band is still in flux after the untimely death of co-founder Frey. Vince Gill and Frey’s son Deacon have stepped in to handle Frey’s vocals and guitar work to great acclaim. While live dates are planned, any studio recordings are unlikely.

Jimmy Buffett opened for The Eagles in the 1970’s:

“Only a few people really know how significant Glenn, Don, Irving and the Eagles were to my rise through the ranks of bands trying to achieve just a sliver of the success that they had achieved,” Jimmy said. “After that first night, Glenn and I went on to become close friends, songwriting collaborators and neighbors in Aspen. He and Don were instrumental in getting Irving Azoff to become my manager, and eventually open for the Eagles on the Hotel California tour of America, which was the rocket ship we rode to eventually becoming a headliner.”

Buffett also gave the speech at The Eagles induction into the Rock and Roll Hall of Fame:

Jimmy Buffett was in Chicago over the weekend for the opening of ‘Escape to Margaritaville’ the musical at the Oriental Theatre and one of the biggest stars in the musical world, Hamilton creator Lin-Manuel Miranda, stopped by and joined Jimmy on stage:

Lin-Manuel Miranda spent Saturday in Chicago, unannounced and mostly in the company of Jimmy Buffett.

Each man has a show currently in Chicago: Miranda’s “Hamilton” is in the midst of a long run in the Loop. Buffett’s “Escape to Margaritaville” is in preview performances at the Oriental Theatre.

Buffett and Miranda appeared together at the Chicago matinee of “Hamilton” Saturday. On Saturday night, sources said, the duo were to appear together at the curtain call for “Margaritaville.”

The two are friends. Buffett has seen “Hamilton” several times already, including a night spent watching the show in New York from the soundboard.

A post shared by Escape to Margaritaville (@buffettmusical) on Nov 12, 2017 at 9:33am PST

Meanwhile saturday in the Windy City….. #escapetomargaritaville audiences got a pair of surprises when JB showed up.. with Lin-Manuel Miranda.. and performed together! #linmanuelmiranda #hamilton #inspiration Ramos

A post shared by Jimmy Buffett (@jimmybuffett) on Nov 12, 2017 at 7:45am PST