There are at least two musical groups with this name.

1- An UK rockabilly/psychobilly band:
http://www.myspace.com/thecaravans

2- An american gospel group popular during the 50's and 60's:
http://en.wikipedia.org/wiki/The_Caravans Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.