The hottest thing on YouTube today isn't smosh or Michael Jordan's Hall of Fame Speech, it happens to be Serena Williams' temper. Last night Serena Williams managed to aide in her own defeat by losing her cool at the US Open woman's semi-final match.

The videos of Serena's hot temper have gone viral on YouTube. Perhaps it was over shadowed this morning by the NFL's opening weekend coverage in the mainstream media.  One version of Serena's video has received 67,000+ views since last night.  It’s also a climbing topic on Twitter.

ON: Serena’s Hot Viral Videos via @jpenabickley