a) Sing with computerized "help," even though he doesn't need it.
b) Write songs that proclaim his hotness.
c) Have a relationship with a famous actress, preferably from a former hit tv series.
d) Pretend he was better than his audience.
e) Stay the heck away from politics.
f) All of the above.
Arlo and Billy may know sound, but something terrible has happened to music since then. That's for sure.
P.S. Some info on Billy Preston from Fox 411 today.