Here is fan filmed video of Lady Gaga at the soundboard at the PNC Arts Center Kiss show in Holmdel, NJ on August 20, 2010. Lady Gaga is rocking out to "Calling Dr. Love."
In similar news Gene Simmons has tweeted on a Lady Gaga/Kiss collaboration:
genesimmons: No.. @LadyGaGa and KISS are not doing a song together.