Microsoft’s SharePoint conference in Anaheim this morning played host to an unscheduled — and unwelcome — musical interlude courtesy of Huddle, a U.K. company that was looking to, um, drum up some attention for its competing collaboration platform.

Yes, that’s a real marching band, with a flag squad and cheerleaders. There were football players, too.

As you can see in the video below, conference staffers were scrambling to figure out what to do as the band played a rousing rendition of Kool & the Gang’s “Celebration.” The Next Web reports that police showed up and ordered the band off the Anaheim Convention Center property.

Ironically, Microsoft helped Huddle get off the ground. Huddle was once a participant in Microsoft’s BizSpark program, an initiative that gives startups free and discounted access to Microsoft software and tools.

As noted by TechCrunch, Huddle is also the company that got Google to change the name of its Google+ Huddle feature to Messenger — not to be confused with Microsoft’s MSN Messenger.

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