This song "Room in Your Heart" definitly needs to be added to your database.
Although I don't know who's is the original version (somebody else may help), but it has been done in several recordings.
The most famous is by "Living In A Box":
http://en.wikipedia.org/wiki/Living_in_a_Box
This, taken from their "Gatecrashing" album reached as a single to number 5 in the UK. That was in 1987.
But there are also versions by
Mike Francis
David Hasselhoff
As a live version, there is this boy band called "Streetwize" (later renamed "Stateside") but here as Streetwize, they are performing it at the ChildLine charity event in Ireland:
They also did a version on CN8
It gives some background info about Streetwize:
A studio version by Streetwize here:
http://streetwizeinternational.imeem.com/music/qNtdI1bm/streetwize_room_in_your_…
No album released though by them. So it remains a live recording, and not eligible for listing (unless they do include it in a forthcoming album).