Liam Payne 's former girlfriend Kate Cassidy  is heating up the California desert ... spilling out of her outfit on Coachella Day 1. Check out her sizzling Instagram post -- she's all done up, wearing a leather and denim miniskirt-and-tank set that barely holds in her voluptuous chest. She doesn't seem to mind the tight squeeze ... playfully posing for the camera on the infamous Coachella Festival grounds. As you know, Kate and the late One Direction star dated for about 2 years up until he

Tag-uri: Instagram