"Since You Been Gone"
I would love to throw a curve ball here and mention King Crimson in a Purplely Rainbowish way. But alas there is no connection.
In this song "Since You Been Gone" you can hear tints of Yes & Foreigner here and if you throw in Rainbow's song you can understand how Smashing Pumpkins got their hit song "1979"
All in all, Deep Purple had the last say as it was the true entity of all the late 70s British music, eh Ozzy. Did i mention Whitesnake just to thread this thread? Lord no.
For Deep Purple see Number 686
For Smashing Pumpkins see Numbers 864, #811, #680 & #568
For more Smashing Pumpkins visit Mellow Mix Vol 1 #139
Rolling Stone Top 500 Songs ranked this song at Number (Nope, Still way to interested in Purple) and the Album ranked at Number (Hey we can only handle one hybrid band)