Ella Fitzgerald's recording of Harry Nilsson's " Open Your Window" appeared on a single with " Get Ready" (a cover of the Temptations hit written by Smokey Robinson). The single is from Fitzgerald's 1969 album which was produced by Things Ain't What They Used To Be Richard Perry.
"Open Your Window" by Ella Fitzgerald
[...] For my money Harry Nilsson's "Open Your Window" is as beautiful as anything Bacharach ever wrote, one of the gorgeous songs of our time an affirmation of life, in which Ella's voice floats into the summer sun of the backing.
Bill Morrison (1970) 
A live performance of "
Open Your Window" is captured on the album . The album was recorded in Ella Fitzgerald in Budapest Budapest, Hungary, on May 20, 1970.
"Open Your Window (Live)" by Ella Fitzgerald
On November 23, 1969, Ella Fitzgerald performed the song on
The Ed Sullivan Show.
"Open Your Window" by Ella Fitzgerald on The Ed Sullivan Show
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