He was a frequent guest cast member in Hee Haw, usually appearing with his father.
Born in Mesa, Arizona, Alan founded a rock band called the Chosen Few at age fourteen before turning his interests to country music. When Bonnie Owens divorced Buck and married Merle Haggard, Alan moved to Arizona with his mother and new stepfather.
Crediting himself as Buddy Alan, he charted for the first time in 1968 with "Let the World Keep on A-Turnin'", a duet with Buck Owens that reached Top Ten on the country charts. This was followed by "When I Turn Twenty-One", which Haggard co-wrote. Alan toured with his father and released an album entitled Wild, Free and Twenty One. Later on, he charted again in the Top 20 with "Cowboy Convention", a duet with Owens' guitarist Don Rich, and earned a Most Promising Male Artist award from the Academy of Country Music. He continued to chart into the 1970s, but retired from the music business in 1978 to attend college. After that, he became a music director at local radio stations, and was voted four times as Billboard Music Director of the Year.