Tool teamed up with Sammy Hagar to play an April Fools' Day joke on their fans.
Since Tool have been working on their new album for many years, their joke was that Hagar was joining the band to speed things up. They posted a photo of singer Maynard James Keenan and Hagar toasting with some glasses of wine and wrote on their Facebook page, "In an effort to nudge the things forward in what seems to be an endless music writing process, Maynard James Keenan has enlisted the help of Sammy Hagar to temporarily replace him as the vocalist for the slow moving internationally recognized rock monster truck, Tool."
Keenan added to the post a reference to Hagar's "I Can't Drive 55," writing, "There seems to be this invisible speed limit we’ve been holding ourselves to. I believe Sammy can help us get all pistons firing and break some sound barriers. Sammy is the only vocalist I’m aware of that was able to take an already established Van Halen an even greater distance. Hopefully this shift will help speed things along."