We were first introduced to the Starbucks 'IT' Frappuccino in 2017 when the first 'IT' movie remake was released. Starbucks hasn't officially announced it's return, but that's because technically it's a secret menu item. Although some locations are embracing it -

Here's what the creepy looking frap looks like -

So what's in it? According to Delish -

The drink features a Vanilla Bean Frappuccino base with that strawberry puree. If you're feeling wild, you can also blend in a vanilla scone. For once, your barista might not hate you for ordering off the secret menu.