Wells Fargo | H. G. Wells | Greg Norman | Greg LeMond | Junior Wells | Indian Wells | Greg Louganis | Greg Chappell | Sadler's Wells | Mary Wells | Greg Nickels | Greg Bear | Greg Abbott | Greg Osby | Greg Dyke | Bishop of Bath and Wells | Greg Kurstin | Greg Grunberg | Wells, Somerset | Wells Fargo Center | Spencer Wells | Sadler's Wells Theatre | Greg Lynn | Wells | Kitty Wells | Jonathan Wells | Wells Fargo Center (Philadelphia) | Wells Cathedral | Jonathan Wells (intelligent design advocate) | John Wells |
The song was written and produced by Perry and by Canadian record producer Greg Wells, who were accompanied by American folk rock singer-songwriter Jonatha Brooke on the songwriting process.