Andrew Garfield and Dane DeHaan star in Columbia Pictures' "The Amazing Spider-Man 2," also starring Emma Stone.
With comic book movies, the post-credits sequence has become such a time-honored tradition that it’s almost blasphemous to skip it.

That said, if you’re planning to see “Amazing Spider-Man 2” on opening weekend, you’d better bring your smartphone.

Collider reports that the Spidey sequel, which opens Friday, does in fact have a teaser, but it can only be unlocked if you Shazam the end credits song, Alicia Keys and Kendrick Lamar’s “It’s On Again.”

Shazam is an app that allows smartphone owners to recognize music that is being played and can quickly spit out the titles of songs for users.

Spoiler warning: the “Spider-Man 2” teaser that will be unlocked gives further insight into the franchise’s planned “Sinister Six” film, which will follow several of Spider-Man’s famous nemeses teaming up.

Dane DeHaan’s Green Goblin and Paul Giamatti’s Rhino are two of the Six introduced in the sequel, with Collider speculating the movie will also likely include Doctor Octopus and Vulture.

What do you think of the unique strategy for the post-credits teaser? Weigh in below!

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