Attaching a domain to non-root path of an app

I have a Django application myapp. It serves example.co.uk so http://example.co.uk serves myapp/. I have a domain somethingelse.co.uk. I want http://somethingelse.co.uk/ to serve /myapp/foo.

This could be achieved by attaching a static app to somethingelse.co.uk and in the root folder of the app insert an .htaccess file with a redirect from http://somethingelse.co.uk/ to http://example.co.uk/foo. Is this the best/only way to do this? It seems somewhat inelegant.