![David Cassidy Television.](../ImagesForTvFilm/TelevisionLogoNew.jpg)
Late Night With Conan O'Brien
December 2, 2005.
David sang "Have Yourself A Merry Little Christmas" as part of a skit. They then advertised "The Rat Pack Is Back".
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Dec_Late Night With Conan O'Brien_01.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Dec_Late Night With Conan O'Brien_02.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Conan1.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Conan2.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Conan3.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Conan4.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Conan5.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Conan6.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Dec_Late Night With Conan O'Brien_06.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Dec_Late Night With Conan O'Brien_08.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Dec_Late Night With Conan O'Brien_09.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Dec_Late Night With Conan O'Brien_10.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Dec_Late Night With Conan O'Brien_12.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Dec_Late Night With Conan O'Brien_13.jpg)
![David Cassidy sings Have Yourself A Merry Christmas](../ImagesForTvFilm/2005Dec_Late Night With Conan O'Brien_14.jpg)
![Advertising The Rat Pack Is Back](../ImagesForTvFilm/2005Conan7.jpg)
![](../ImagesForTvFilm/2005Conan8.jpg)
Watch the Segment:
![David Cassidy Downunder Fansite](../ImagesForTvFilm/TelevisionBottomLeftNew.gif)
December 2, 2005.
David sang "Have Yourself A Merry Little Christmas" as part of a skit. They then advertised "The Rat Pack Is Back".
This section last updated: August 15, 2020