This la la dee etc. has been used once or twice..
It got famous with the song 'Gypsy Woman ( she's homeless) 'by Crystal Waters.
Has been used by other artists , read below...
The song was sampled by Styles P in 2004 for the song "Favorite Drug" from his album Time is Money, and later by T.I. on his 2006 single "Why You Wanna". At the end of the song "Bums" by Mr. Hyde and Necro, there is a quick sample of Waters saying, "Homeless... She's Homeless."
In 2006, it was remixed by Sami Dee & Freddy Jones and re-released as "Gypsy Woman 2006 (La-Da-Dee)" on the record label Absolute Sound France. The 12" vinyl included two remixes, as well as the a cappella vocal. The Big Room Anthem remix was featured on the 2007 Ministry of Sound Annual.
Just so you know what I'm la dee daing about
http://www.youtube.com/watch?v=XaIGPlfH_rs