"Parrot Head" Jimmy Buffett fans gather in Fla.

In this Friday, Nov. 4, 2011 photo provided by the Florida Keys News Bureau, singer/songwriter Jimmy Buffett performs before some 3,500 of his fans on Duval Street in Key West, Fla. Attendees at the 20th Parrot Heads Convention were surprised when Buffett made a rare appearance, playing with his Coral Reefer Band for more than an hour.
Rob O'Neal,AP Photo/Florida Keys News Bureau
In this Friday, Nov. 4, 2011 photo provided by the Florida Keys News Bureau, singer/songwriter Jimmy Buffett performs before some 3,500 of his fans on Duval Street in Key West, Fla.
Rob O'Neal,AP Photo/Florida Keys News Bureau

(AP) KEY WEST, Florida - About 3,500 fans of Jimmy Buffett are celebrating the singer's music and laid-back island attitude in Key West, Florida.

Attendees at the 20th Parrot Heads Convention were surprised Friday afternoon when Buffett made a rare appearance with his Coral Reefer Band. He played for more than an hour. Many of his 15 songs featured lyrics recalling people and places he knew while living in Key West during the 1970s and 80s.

The convention of "Parrot Head" fans, named for their offbeat tropical headgear, continues through Sunday. It will feature more performances and a charity auction.

Organizers say that since 2002, members of about 200 chapters have contributed over $20 million and nearly 3 million volunteer hours to local and national causes.