https://soundcloud.com/david-lane-16/full-concert
I'm not much for recording, but I started a Zoom H2 (probably a little too close to a speaker) and at about 31 minutes into the recording you can hear a pianist (Nikki Forova) sing with a slight Russian accent into the AKG mic. The other feminine singer is using a Senn e865.
34 minutes in is a another example among several others.
At about 46 minutes in is a good show of just the Senn e865.