Last week, Facebook announced that its f8 developer conference will take place on September 22. The company said it would explore topics including: new products, building social apps and open Q&A.

“We have some exciting product announcements that enable a new class of social apps,” the company said.

There have been rumors going around for months that Facebook was gearing up to launch a new music offering based on partnerships, so naturally, there has been plenty of speculation that this would be revealed at f8.

News out today seems to indicate that this is more than just speculation. CNBC reports that a “source with knowledge of the plans” says that they will indeed launch a music platform at f8. CNBC’s Jon Fortt says, “it may be creating an environment where third-party music services such as Pandora, Spotify, MOG and others can offer their wares.”

Mashable says it has learned that three of its launch partners will be Spotify, MOG and Rdio. It would be surprising if Pandora wasn’t involved, as it was a launch partner for Facebook’s Open Graph at the last f8 conference.

Facebook’s statement is: “There’s nothing new to announce. Many of the most popular music services around the world are integrated with Facebook and we’re constantly talking to our partners about ways to improve these integrations.”

That didn’t say, however, that there won’t be anything to announce on September 22.