Apple Inc. (NASDAQ:AAPL) CEO Tim Cook and Tesla Motors Inc (NASDAQ:TSLA) CEO Elon Musk will both appear at this years All Things D conference in California’s Rancho Palos Verdes. The conference, which is billed as D11, will kick off this afternoon with a chat with Apple’s top executive, while Tesla fans will have to wait until tomorrow to see their luminary take to the stage.

Elon Musk Tesla Motors

Tim Cook was one of the headline acts at the All Things D conference last year, but if that performance is anything to go by, this evening’s interview will offer little in the way of revelation. Apple Inc. (NASDAQ:AAPL) has a reputation for saving its reveals for its own highly publicized events, and that’s unlikely to change today.

Tesla Motors’ CEO Might Say Something Stunning

On the other hand, Elon Musk might just say something stunning when he takes to the stage at the event tomorrow. The Tesla Motors Inc (NASDAQ:TSLA) CEO is known for his unorthodox approach to announcements, revealing several of the company’s key moves on Twitter, and the All Things D conference may be just the place for the CEO to wow his followers.

Apple CEO To Talk Tax Issues?

Tim Cook will appear on stage at the conference at 6 PM EST this afternoon. There’s no specific program available to give insight into what the Apple Inc. (NASDAQ:AAPL) CEO will discuss, but some guesswork can be done. We’re unlikely to see the next iPhone or the Apple TV on stage, and we’re unlikely to hear what the company plans to do in the various legal engagements it currently finds itself in.

Tim Cook may take some time to talk about tax issues, and perhaps even some intellectual property issues. The CEO has found himself in the midst of these issues in recent years as the patent wars rage on and Apple Inc. (NASDAQ:AAPL) has become the poster boy for tax avoidance. Cook may also offer some clues about what the next iteration of iOS will look like, but most details will be saved for the company’s own conference in the second week of June.

Elon Musk might be a different story. The South African entrepreneur is unpredictable, and he likes to keep it that way. Nobody is quite sure which of his many companies he will talk about, or whether he is planning any major announcements tomorrow.