In a discussion about which of the two songs should be the A-side of the new single, Lennon had argued for "Day Tripper", differing with the majority view that "We Can Work It Out" was a more commercial song. On 15 November, EMI announced that the A-side would be "We Can Work It Out", only for Lennon to publicly contradict this two days later. As a result, the single was marketed as the first-ever "double A-side". Lennon's championing of "Day Tripper", for which he was the principal writer, was based on his belief that the Beatles' rock sound should be favoured over the softer style of "We Can Work It Out". Airplay and point-of-sale requests soon proved "We Can Work It Out" to be the more popular of the two sides.