When was the album that included the Who Dat Boy released?
Who Dat Boy:  It was released on June 30, 2017 alongside, "911 / Mr. Lonely" through Columbia Records, as the lead singles from his fourth studio album "Flower Boy". Flower Boy:  The album, which is his first under a major record label, was released on July 21, 2017, by Columbia Records.
July 21, 2017