multiple rcp commands in parallel

I have multiple hosts on my network. All can communicate with rcp. I have certain files to send out to all servers on a regular basis. These can be quite large (5mb). I can easily have a script to do it one by one, however i have 25 servers to send out to and 5mb can take up to 15 minutes on our network. Hence the whole process will take some time to complete.
So how can i run the same rcp command in parallel to all servers at the same time?