Conceived as an answer to Jay-Z's "Empire State of Mind," this ode to West Coast ladies is gleefully over-the-top — a thumping, synthy summer anthem that screams, "This is a summer anthem!" Snoop Dogg's lyrics are marginally better than Perry's lines about "Sippin' on gin and juice/Laying under the palm trees," and you can bet your SPF 80 that the buoyant tune (co-penned by Dr. Luke and Max Martin) will lodge itself in millions of skulls.

“Everyday People”

"Everyday People" managed to trailblaze in two different ways -- it was one of the first pop hits to deal with the subject of racial harmony, and it utilized Larry Graham's "slap" technique on the bass guitar, which would soon be copied by countless other bassists. Graham once said about his pulsating style, "I'd never done that before … that's where the freedom of creativity came in for the band, that we'd be allowed to do that." In 1978, the song's line "Different strokes for different folks" would be borrowed for the title of the hit television show Diff'rent Strokes.