Musician Eddie Vedder can call many places home. He was born in Evanston, Ill., where he obtained his Chicago Cubs fandom. He spent much of his adolescence in San Diego, and his band Pearl Jam is among the quintessential Seattle groups.

Wait. The Padres and Mariners are making the “Vedder Cup” official? Talk about a grass-roots campaign sprouting out of press box shenanigans in Peoria, Ariz., and climbing all the way up the corporate ladder.