When Bethany Cosentino, Kid Cudi, and Rostam Batmanglij made a video for their Converse-funded "All Summer" they opted to don over-sized versions of their own heads and move into a "warm apartment." Despite featuring two "Hot" bands, things are icier (and pleasingly stranger) in the Andreas Nilsson-directed video for Bernhard Sumner, Hot Chip, and Hot City's Converse-funded "Didn't Know What ...