If you’ve ever wondered why Starbucks’ popular fall drink is called Pumpkin Spice Latte, the backstory has been revealed. It almost didn't make it to market and it once had a different name entirely. PSL creator Peter Dukes says when he whipped it up back in 2003 it was called Fall Harvest Latte, but the team opted to go with Pumpkin Spice Latte after a bit. At first it tanked with customers and then with the name change it became viral. Now you know.