Sammy Hagar on feuding with Alex Van Halen, why Van Halen needs a documentary, and the thought of his own retirement.

At 77, Sammy Hagar is likely the oldest on the lineup, but it’s hard to tell when he’s taking swigs of tequila and never stops moving.

It’s not meant to be anything more than a thank you — with love, with respect and with one hell of a guitar solo,” the Rock and Roll Hall of Famer shared.

Sammy Hagar's new song, 'Encore, Thank You, Goodnight,' was written in a dream with Eddie Van Halen, and recently finished ...