Would anyone know the vocalist of the three songs by Cole Porter which feature in Sleuth [1972]?

i.e.....It Was Just One Of Those Things, You Do Something To Me, Anything Goes.

Here is a clip of the songs in the movie: Cole Porter's songs in Sleuth (1972) - YouTube (http://www.youtube.com/watch?v=4_VVr8ScGOc)

It's probably a stab in the dark, but help would be much appreciated!