On Wednesday, Hagar, now 77, let his set list do the punching, opening the show with the debut of his newest song, "Encore, Thank You, Goodnight," a guitar-driven, poignant single about his ...

Sammy Hagar's 'Best of All Worlds' Vegas residency kicked off with a guest appearance by Kesha, and featured the first "Love Walks In" since 1993.