Taco Bell uses moon as 'influencer' for upcoming global campaign Details 03 May 2021 Taco Bell is enlisting the help of the night sky and the waning crescent moon as the billboard for its first global campaign. On 4 May, the moon will resemble a taco when it is in the waning crescent phase, a shape which Taco Bell affectionally calls the "Taco Moon". When that happens, consumers in the US can snag a free crunchy taco in-store, via the app or online. Southeast Asia is also joining the global campaign, with the Philippines and Thailand kicking it off i...