But with 1986's '5150' Van Halen proved they knew what they were doing when they hired Sammy Hagar, even if the result was a markedly different, more mature version of everybody's favorite party band.

The band had a more mature, modern sound. 5150 became Van Halen's first of four number-one albums with Hagar. 1984 fell just short, peaking at number two. In all fairness, five of the six Roth ...

The tour's name plays off the title of the song "Best of Both Worlds," on Van Halen's "5150" album from 1986 when Hagar ...

And when Eddie heard Vai apply his magic to his own songs in Roth’s band, he was duly impressed. “I’m going, ‘This guy is better at what I do than I am’, you know?” Eddie told interview Shaun Baxter ...