== Lisa it's your bithday & Do the Bartman == 

 Michael Jackson wrote  Lisa it's your birthday and  Do the Bartman for the Simpsons and recorded the demo's. The demo of Lisa it's your birthday has been leaked on the internet. I want to add this songs to this list, but I can not find a reliable source. Does anyone know where I can find a reliable source, because Wikipedia isn't a reliable source? I've already made a table for this songs but I can not add it, because of the reliable sources. 

 {| class="wikitable sortable" border="1" 
 !Song!!Writer(s)!!class="unsortable"|Notes!!class="unsortable"|Ref 
 |- 
 |"Do the Bartman"|||| 
 * Written during the Dangerous-sessions for The Simpsons    
 * Later sung by Bart Simpson and released a single 
 || 
 |- 
 |"Lisa, it's your birthday"||||    
 * Written during the Dangerous-sessions for The Simpsons    
 * Later sung by Bart Simpson    
 * The demo has been leaked on the internet.    
 * Also known as "Happy birthday Lisa".    
 || 
 |- 
 |} 

  
 Thanks.