Starbucks is bringing back at least one viral drink that has been unavailable for several years, with some reports suggesting it has been nearly a decade. The returning drink may include the S'mores Frappuccino, the Unicorn Frappuccino, or another popular item, although the specifics are unclear. The reintroduction is reportedly part of a summer menu launch, which may also feature new items, including a color-changing drink and related merchandise.