By now, we’ve all heard the rumors about Rihanna’s popular “Birthday Cake” track being remixed to feature Chris Brown. The rumor is all but confirmed at this point. Well, according to Sandra Rose.com’s exclusive source, the head honchos over at Roc Nation may put the breaks on releasing the track due to all of the controversy surrounding  Chris Brown’s appearance on it. Apparently, Rihanna’s core fan base known as the “Rihanna “Navy” are not in support of the track and consider the collaboration to be “career suicide.” The track is scheduled to drop tomorrow and has the full support of both Rihanna and Chris Brown. Check out their tweets below: In related news, Happy 24th birthday to Rihanna! Source: Sandra Rose.com