why dont we just get married. HELP PLEASE

ok guys, a challenge.

ive got a melody stuck in my head. its something about "why dont we just get married ..." something about a big house. there are two people singing, possibly more. it popped into my head while listening to the start of something by voxtrot, the melody is very similar. if you have any idea drop me a line.


Thanks sooo much

and here are indeed more people singing:
Linus Two: Why Dont We Just Get Married?
http://de.audiomicro.com/hochzeit-vo...e-musik-103645