SARASOTA, Fla. (AP) — Allman Brothers Band founding member Dickey Betts has had successful surgery after slipping and hitting his head while playing with his dog in Florida. The Dickey Betts website says the "Ramblin' Man" and "Blue Sky" singer-songwriter and guitarist underwent surgery Friday to relieve swelling on his brain. A statement posted Saturday on the website says Betts and his family said the "outpouring of support from all over the world has been overwhelming and amazing.