The existence of a mysterious new drink at Starbucks has been confirmed. This week, select locations launched the Unicorn Frappuccino in all its pink, sparkling glory. More stores are expected to release the drink on Wednesday, April 19, Bon Appétit reports.

Rumors of the magical concoction first surfaced on Reddit last week. Pictures posted to the Starbucks subreddit of the drink and its ingredients—including “pink powder” and blue “unicorn dust”—suggested that a menu item based on the unicorn drink trend was on its way. But much like the mythical creature it's named for, the beverage remained shrouded in mystery ... until now.

Since its limited debut earlier this week, Instagram has been flooded with colorful photos attached to the hashtag #unicornfrappuccino. Starbucks officially announced the drink this morning, stating in a press release that, "The elusive unicorn from medieval legend has been making a comeback. Once only found in enchanted forests, unicorns have been popping up in social media with shimmering unicorn-themed food and drinks. Now Starbucks is taking the trend to a new level with its first Unicorn Frappuccino® blended beverage, available starting Wednesday, April 19, through Sunday, April 23, while supplies last." Based on its social media popularity, we predict that supplies won't last long. Track down this elusive creation while it lasts.

[h/t Bon Appétit]