Lily Allen – the snarky, neurotic Lily Allen who sang about insecurity, absent fathers and sleeping in the wet spot – is not who I would turn to for sappy love ballads. She’s someone whose natural irreverence doesn’t sit well sentimentality. Yet in 2013 she had a number one hit with a song so sappy it was featured in an upscale department store’s Christmas ad. Some of us have a knee-jerk cynical reaction to the Christmas propaganda of large department stores – it’s terminal-stage capitalism dressed up in heartwarming sheep’s clothing! It’s easy to imagine a young Lily Allen writing something satirical and hilarious about all those treacly holiday spirits, but Lily is a grown-ass woman now and a mother. And who is ever really immune to the charms of animated woodland critters, anyway? It may be an ad for John Lewis stores, but it has bunnies, and it’s a sweet song.