That's pretty cool. He seems to do a lot of announcing work like this, commercials for the lakers, etc. I suppose he's got a great voice for it.
Good for David Kaye!! Glad to hear him again! I can hear him now: "Yeeeessss, Yeeeessss, Now here's Jaaaayy!!, huuuummmm!
Wally Wingert (voice of RiD Sideburn and Mirage) has been the announcer for Leno's show since September: Wally on Leno! Wally mentioned on his blog last week that he was having some vocal problems due to congestion and allergies, which might explain why Kaye was filling in for him.