B-Sides That Became Big Hits

As Blue Oyster Cult once sang, there’s a time to play B-sides – and sometimes those B-sides end up becoming hits in their own right.
The folks at Ultimate Classic Rock have run down a list hit songs that started out as the B-side for a different single. Some highlights:
Doobie Brothers, “Black Water”
KISS, “Beth”
Green Day, “Good Riddance (Time of Your Life)”
The Beatles, “I Am The Walrus”
Rod Stewart, “Maggie May”
Pearl Jam, “Yellow Ledbetter”