In Hagar's 2012 memior "Red: My Uncensored Life in Rock", he recounted the phone call he got at about 2am from a wasted Eddie who asked him, "What are you going to do when we get back?" he said "I don't know, Take some time off. What are you going to do?" "I don't know yet," he said. "When I figure it out, I'll let you know. I've got some plans, but I'll let you know if it involves you or not." "Okay" He said. "Fuck you." then hung up the phone.
Hagar’s time with Van Halen wasn’t quite over after the phone call. He and his wife had decided on a whim to buy a home in Hawaii, where they were preparing for the birth of their daughter. “As soon as the tour ended, the [Van Halen] brothers started calling every day,” he said. “We just did a record and a world tour, and these crazy bastards wanted to go in and do a song for the movie Twister. I was not down with it. All they wanted was to get me off the island. [Manager] Ray Danniels would be on the phone saying things like, ‘If you’re not back tomorrow, we’re assuming that you’ve quit the band.’”
Eventually Hagar decided to take part in the project, but found himself at odds with the Van Halens’ musical direction. When he was told he couldn’t go home after the sessions because he had to work on another song, he refused. “I went back to my hotel room and changed my name at the front desk,” he said. “Eddie was trying to call me at night. Security knocked on my door to tell me they had Eddie Van Halen on the phone. ‘What do you want us to do?’ the guy asked. ‘Tell him to go fuck himself,’ I said. That’s when they called [David Lee] Roth.”
He later received another call from Van Halen. “‘You’ve never been a team player,’ he said. … ‘You always wanted to be a solo artist. You can go back to being a solo artist. We’ve been working with Roth on the greatest-hits record and it’s going great.’ They’d been working with him behind my back while I was in the hospital with my wife having a baby.” A follow-up call from Danniels, who wanted to calm the situation, did no good. “‘Go fuck yourself, for starters,’ I said. ‘Second of all, congratulations. You just broke up the biggest band in the world. Fuck you. It’s over.’”
"Eddie always said I quit, and maybe I did," Hagar reflected.
“It got so bad that I actually started drinking again,” Eddie said of the tensions with Hagar the following year. “He stopped being a team player. He was especially irritated by the fact that I began to get involved with the lyric writing. … Whenever I suggested something to Sammy, he would just stop talking to me.” He said their final phone conversation resulted in Hagar saying, “I want to go back to being a solo artist” and that he replied, “Thank you for being honest. ... I didn’t fire him. He just quit.”
Although he appeared on Best of – Volume I, Roth didn’t return to the band full time; Gary Cherone eventually took over as singer. Hagar returned in 2003 but was replaced by Roth four years later. Hagar and Eddie Van Halen finally settled their differences in the months leading up to the guitarist’s death in 2020. “It feels like, hey, we had a great thing,” the singer noted. “This music will live on forever — beyond me.”