Written by the band in a farmhouse outside Seattle and by frontwoman Emily Haines while on a soul-cleansing sojourn to Argentina, Fantasies is a densely textured modern mix of psychedelia, electro, and rock with a "really big and really dreamy" sound, says guitarist/co-founder Jimmy Shaw.

Haines adds, "For me, the major influences on the record were the places we wrote it: Bear Creek, this utopian farmhouse studio, and then our own studio in Toronto, which definitely brought in the electro, dance and rock elements because the city feels so good right now and so many of our musician friends were around. And then for me, being in Buenos Aires, most of the songs I brought to this record came out of being in exile with just a piano and a guitar. And then in the final stages, mixing at Electric Lady in NYC brought everything around to where we first met Josh and Joules."