To some, Chilton is best known for his time in the 60s pop group The Box Tops ("Soul Deep" "The Letter"), a band he joined at age 16. To others, he is best known for his 70s power-pop band Big Star. The highly influential band was largely ignored at the time, but had a major impact on 1980s alternative music artists like R.E.M. and The Replacements. Chilton performed and recorded as a solo artist before Big Star reformed in 1993 with help from The Posies.
I was fortunate enough to see Alex perform a couple of times. I saw him play a solo acoustic show in Minneapolis, and saw one of the earlier Big Star reunion shows in Chicago.
R.I.P. Alex. You will be missed.