The band's founding guitarist Brad Delson is featured on the album, but isn't touring. Alex Feder is taking his place on the road. “Before Linkin Park, our first band name was Xero. This album ...

Now, the band's sharing all those songs in a cappella form—and the new album comes out tomorrow (January 24). “Before Linkin Park, our first band name was Xero. This album title refers to both ...