you couldn't ignore the inevitability of this disease and if charlton hessen and his wife could talk about it, you could, too. the national academy of recording arts and sciences honored the legendary glenn campbell who is also talking now, he got a lifetime achievement award. >> last year it was announced he was facing alzheimer's disease and he would cap his brilliant career with one more album and a farewell tour. tonight we celebrate glenn campbell's musical impact on our world with the help of the band perry, blake shelton and because he's always shown us how it is done, the rhinestone cowboy himself. ♪ i'm going to be where the lights are shining on me ♪ ♪ let's hear it all ♪ like a rhinestone cowboy ♪ oh, yeah ♪ riding out on a horse in a star spangled rodeo ♪ ♪ yeah ♪ like a rhinestone cowboy ♪ getting cards and letters from people i don't even know ♪ ♪ . >> shep: when glenn campbell was in his 20s, he moved to los angeles to pursue his love for music and became a member of a group of studio musicians called the wrecking crew. they recorded with tap -- top artists. in 1967, h