The pop star took a whirlwind trip to the French capital for the start of Paris Fashion Week and to promote her latest music, before swiftly returning to London on Tuesday (25 February).
And after glamming it up for a couple of days, it seems all the 'LDN' singer had on her mind for the trip home was comfort and warmth.
Mum-of-two Lily dressed to impress for an evening out in the stylish city on Monday, but decided to kick back on the train yesterday in a pair of Nike trainers and a bright jumper.
She teamed her loose-fitting, colourful knit with some jeans and tied her black hair up into a messy bun, which made the blue streaks in her blunt fringe stand out even more.
Last week, Lily debuted her blue streaked fringe at the Elle Style Awards.
The following night at the Brit Awards, Lily dazzled in a sequin gown on the red carpet and wore a bright yellow faux ponytail.
We wonder what colour she'll experiment with next!
What do you think of Lily's travel outfits? Let us know below, as the best comment from across the website each week wins £50!
Got an iPad or iPhone? Reveal Mag has been especially designed to fit!