Apple Event 2015: Live Updates, Unveiling of iPhone 6s, iPad Pro, Apple Pencil

Follow the action from Apple's special September event here.

Apple is remaining tight-lipped about the agenda for the event and in a characteristically coy invitation teased, "Hey Siri, give us a hint."

For those who take the invitation literally, Apple is even having a little fun with Siri. Ask the virtual personal assistant "Siri give me a hint," and she will fire back: "Why don't you check a rumors blog? That's what I do."

And if past Apple events are any indication, there will be at least "one more thing."

We'll be covering all of the action live, so stick with ABC News for updates. If you're on a mobile device, click here.