Is it possible to allow multiple SSH host keys for the same IP?

I have a script that needs to connect to the currently active head of a high-availability cluster. Each node in the cluster has a fixed hostname and IP address. The current head additionally has a "virtual IP". In the case of a switchover or failover, another node configures the "virtual IP" and begins acting as the head. Can I just point my script at the virtual IP? Won't ssh complain about mismatching host keys when the cluster moves the virtual IP to a different node?