Guess the name of musician

Then: Keg
Now: EKG.

Then: Acid rock
Now: Acid reflux.

Then: Moving to California because it's cool.
Now: Moving to California because it's hot.

Then: Watching John Glenn's historic flight with your parents.
Now: Watching John Glenn's historic flight with your kids.

Then: Trying to look like Marlon Brando or Elizabeth Taylor.
Now: Trying not to look like Marlon Brando or Elizabeth Taylor.

Then: Our president's struggle with Fidel.
Now: Our president's struggle with fidelity.

Then: The Grateful Dead.
Now: Dr. Kevorkian.

Then: Getting out to a new, hip joint.
Now: Getting a new hip joint.