The Beach Boys made the song first in the 1960's. Perry copied them and did not do the song as well.
Phantom Planet
2pac
Robert Plant sings all of Led Zeppelin's songs.
Katy Perry featuring Snoop Dogg
California Soul by Marlena Shaw.
Kings of Leon
California Gurls are sung by Katy Perry and Snoop Dogg.California Girls is sung by David Lee Roth.So take your pick.
She sings california king bed.
Rhianna
haha
California Dreamin'" by Scala & Kolacny Brothers
The Mamas and the Papas
Robert Plant sings all of Led Zeppelin's songs.
The Rivieras, none of whom had actually visited California when the record came out.
Ryan Beatty that sings on YouTube lives in Clovis, California
California Swag District
Marlena Shaw
California Soul
Eva Cassidy