Watch RIMs Epic Musical Love Letter to Developers

Tuesday morning at BlackBerry Jam in San Jose, RIM CEO Thorsten Heins assured developers that the company is laser-focused on BlackBerry 10, and that the company is making believers out of people who have previously written BlackBerry off.

SEE MORE: RIM Reveals More Details About BlackBerry 10

Then after his presentation, Heins left the stage and played this sing-along video for the developers in the audience: "Our Updated SDK is Really Cool." The video stars may top RIM personnel: Alec Saunders, VP Developer Relations & Ecosystem; Chris Smith, VP Application Platform & Tools; and Martyn Mallick, VP Global Alliances & Business. You have to see it to believe it.

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