Proxy to an external HTTP server

This seems fairly simple, but I'm having a bit of trouble getting this working.

 

I have setup a million virtual servers that work as a proxy for a backend web server, but for whatever reason it doesn't seem as straight forward for an external web server.

 

So here's the deal, if I want users who hit my F5 using to be proxied (not redirected) to what do I need to do?

 

I figured it would be as simple as setting up as a FQDN node and assigning it to a pool and making that the pool for the VS, but that doesn't seem to be the case.