UPDATE:

Resorts has confimed what I speculated earlier this week - JImmy Buffett will be a the free concerts at Resorts this Saturday!

Resorts is hosting a free beach concert Saturday, "to celebrate Resorts' enhance beach vibe and Margaritaville launch", according to a press release from Resorts.

Scheduled to appear at the live concert are: pop star Andy Grammer, the duo Wilson Phillips, and country music's Mac McAnally. The free concerts begin at 1pm, and are scheduled to last in the evening.

Resorts has confirmed the special guest will be Jimmy Buffett.

The concerts are a celebration of Margaritaville. It's his place. Margaritaville means a lot to Resorts, and Margartaville is Jimmy Buffett! Also, Mac McAnally has been a longtime collaborator with Buffett. He's played in his band, co-written some of his songs, and produced some of his albums.