Singer Bobby Womack reveals he has Alzheimer's disease

American soul singer Bobby Womack, 68, has revealed he has been diagnosed with Alzheimer's disease. Womack, who released a comeback album in June 2012, is in the early stages of the disease, and has begun forgetting songs and names of people.

"The doctor says there are sign of Alzheimer's," Womack told the Sun. "It's not bad yet, but will get worse." "How can I not remember songs I wrote?" The "Across 110th Street" singer wondered frustratingly. "I don't feel together yet. Negative things come in my mind and it's harder for me to remember sometimes," the Rock 'n Roll Hall of Fame singer explained. Womack made a recent comeback to music after having surgery for both prostate and colon cancer, BBC News reports. He also suffered from pneumonia on two different occasions as well as collapsed lungs. The singer was embarrassed at the 2012 Q Awards for mistakenly introducing Blur and Gorillaz frontman Damon Albarn as Damon Osbourne, The Guardian reports. Albarn co-produced Womack's 2012 comeback album, The Bravest Man In The Universe, which won the Q Award for Best Album of 2012. In addition to collaborating on The Bravest Man In The Universe, Womack also sang on the last two Gorillaz albums and has also toured with the group.