TODAY’S INCRIMINATING VOICEMAIL: Last month, the Daily Beast’s Peter Lauria revealed that Viacom emperor (and legendary horndog) Sumner Redstone was pressuring MTV to air a reality series on girl band the Electric Barbarellas, featuring a young lady he allegedly found extremely attractive. Lauria now says Redstone is trying to get him to rat out his source within Viacom, and he has the voicemail to prove it. Check out the video below, which shows the reporter playing back Sumner’s message, and read all about it. (7/20a)