Ok, maybe not the saddest music video ever, but it comes pretty close. At least I found it sad. 
<object type='application/x-shockwave-flash' width="250" height="250" data='http://www.youtube.com/v/2exE-td4F3k&feature=fvst'>
<param name='AllowScriptAccess' value='never' />
<param name='wmode' value='transparent' />
<param name='movie' value='http://www.youtube.com/v/2exE-td4F3k&feature=fvst' /><param name='play' value='true' />
<param name='loop' value='true' /><param name='quality' value='high' /></object>
http://www.youtube.com/watch?v=2exE-td4F3k&feature=fvst
Thoughts?

<object type='application/x-shockwave-flash' width="250" height="250" data='http://www.youtube.com/v/2exE-td4F3k&feature=fvst'>
<param name='AllowScriptAccess' value='never' />
<param name='wmode' value='transparent' />
<param name='movie' value='http://www.youtube.com/v/2exE-td4F3k&feature=fvst' /><param name='play' value='true' />
<param name='loop' value='true' /><param name='quality' value='high' /></object>
http://www.youtube.com/watch?v=2exE-td4F3k&feature=fvst
Thoughts?