By Ryan J. Downey, Los Angeles Lifetime Achievement Award winners (from left) George Jones, Gregg Allman, Diana Ross and Glen Campbell at The 54th Annual GRAMMY Awards – Special Merit Awards Ceremony at LA's Wilshire Ebell Theatre.

Glen Campbell shocked music fans last year when he announced he was battling Alzheimer's disease. The 75-year-old, who is currently in the middle of a farewell tour, admits each day can be a challenge as he fights the illness.

gathered at the Wilshire Ebel Theatre in Los Angeles to accept the Recording Academy's Lifetime Achievement award, alongside other recipients George Jones, Glen Campbell, the Memphis Horns, Antonio Carlos Jobim, Gil Scott-Heron, and Diana Ross.

By Ryan J. Downey, Los Angeles Lifetime Achievement Award winners (from left) George Jones, Gregg Allman, Diana Ross and Glen Campbell at The 54th Annual GRAMMY Awards – Special Merit Awards Ceremony at LA's Wilshire Ebell Theatre.

gathered at the Wilshire Ebel Theatre in Los Angeles to accept the Recording Academy's Lifetime Achievement award, alongside other recipients George Jones, Glen Campbell, the Memphis Horns, Antonio Carlos Jobim, Gil Scott-Heron, and Diana Ross.