Music producer Rick Rubin has consistently sought spontaneity and emotional authenticity across his work with diverse artists. Reflecting on Paul McCartney's output, Rubin expressed particular appreciation for how McCartney constructs melodies with such natural accessibility that listeners can connect with them immediately, regardless of musical technicality. The producer emphasised that McCartney's distinctive talent lies in crafting songs that feel universally resonant.

Rubin specifically cited 'Life Can Be Hard' from McCartney's self-titled album as exemplifying this quality—it possesses an almost mythic character, as though it has existed in popular consciousness far longer than it actually has. Rather than detracting from the composition, McCartney's aged vocal performance adds depth and authenticity to the track's message about overcoming life's difficulties. Rubin characterised the song as embodying the wisdom that comes from extensive life experience, with its emotional directness outweighing any occasional sentimentality.