Singing legend Glen Campbell is sadly battling Alzheimer's Disease at age 81. He is reportedly in the final stages of the disease. New reports reveal that Glen has managed one final gift to his family, friends and fans — a goodbye album.

Campbell's final album contains the final and last works of Campbell, and one very special song that says it all to his fans. "Adios" is a song that will put a lump in the throat of the toughest man, and send the tears down the cheeks of many of his fans.

Glen Campbell's goodbye to fans is so sad and final

"Adios" is written by Jimmy Webb and was previously recorded in 1990 by Linda Ronstadt.

The tune is one of four of Webb's songs included on Campbell's final album.

Webb reveals that he and Glen Campbell are longtime friends. They performed the song together numerous times many years ago. Glen Campbell's version of the song was recorded during Campbell's 2011-2012 "Goodbye Tour." His final tour was featured in the 2014 documentary "Glen Campbell...I'll Be Me."

Kim Campbell reveals Glen is in final stages of Alzheimer's

Campbell's health is rapidly deteriorating according to a recent health update from his wife, Kim. She reveals that Glen, who just celebrated his 81st birthday, has been battling Alzheimer's disease since 2011.

The "Rhinestone Cowboy" hitmaker is now in the final stages of the heartbreaking disease.

Kim explains that the disease has progressed so far that Campbell can no longer recognize time or place. This is one of the saddest and most difficult stages for all involved to cope with.

Sadly, Glenn Campbell's family is going through hard times. In addition to the deteriorating health of the the music icon, Radar Online reports that there is an ongoing court battle between Glen's wife Kim and two of his children from his previous marriages.

His son Travis and daughter Debby allege that Kim keeps Glen secluded from other members of his family and does not allow them to participate in his care.

They state that their father is unaware of the situation due to the advanced stage of his illness. His children know that as each day that they are unable to spend time with their father is time that they will never get back.

It is a sad situation for all involved. Let's hope the family can reunite on good terms and spend the remaining time Glen Campbell has left as a happy and loving support group.

What are your thoughts on Glen Campbell's final album and recording of "Adios?"