The failed Mars Polar Lander carried a microphone. Are any of the current Mars landers so equipped?
… and it picked up a voice calling, “Tars! Tars Tarkas!! … Drat, where is that boy?”
Not that I know of, but why bother. All one would hear is “Grok this” and “Grok that”…
Naw, it was Tars Tarkas who smacked the Polar Lander with a blunt instrumrnt and busted it.

Microphones? All right! Karaoke night!
“Somewhere…beyond the sea…somewhere, waiting for me… My lover stands on golden saaaaaaaands…”
http://plasma2.ssl.berkeley.edu/marsmic/
Although that site hasn’t been updated in a while