Jamba (formerly Jamba Juice) is one of the largest smoothie and juice chains in the United States. It was founded in 1990 by Kirk Perron in San Luis Obispo, originally under the name Juice Club. The company rebranded from “Jamba Juice” to simply “Jamba” in 2019 to reflect a menu that had expanded beyond juice. I ordered a strawberry watermelon lemonade, which was a summer special. It was sweet and fruity, with just a touch of tang from the lemon.