A-side and B-side pirate radio stations operating off the British coast in the 1960s would buy the publishing rights to the B-sides of records they expected to be hits, and then plug the A-sides in the hope of driving up sales and increasing their share of the royalties. Occasionally, the B-side of a single would become the more popular song. This sometimes occurred because a DJ preferred the B-side to its A-side and played it instead. Some examples include "I Will Survive" by Gloria Gaynor (originally the B-side of "Substitute"), "I'll Be Around" by the Spinners (originally the B-side of "How Could I
A-side and B-side single where both sides are designated the A-side; there is no B-side on such a single. The double A-sided single was invented in December 1965 by the Beatles for their single of "We Can Work It Out" and "Day Tripper", where both were designated A-sides. They continued to use the format for the release of the singles "Eleanor Rigby" and "Yellow Submarine" in 1966, followed by "Strawberry Fields Forever" / "Penny Lane" in 1967, and "Something" / "Come Together" in 1969. Other groups followed suit, notably the Rolling Stones in early 1967 with "Let's Spend the Night Together" / "Ruby