Gus Johnson is largely considered the voice of the NCAA tournament (sorry, Bill Raftery), but he also works Knicks games with Clyde Frazier, as you can see in this clip from last night's Knicks-Bucks (ugh) "game." And it's obvious that as the quality of the games go, so too does the level of Gus's work. Exciting tourney games give you Johnson yelling himself hoarse; two atrocious NBA teams will get you ABBA's "Dancing Queen."
I'll tell you this much: he's nowhere as good as I am. In a poll I conducted in my bedroom, 100% of stuffed animals agree: I'm way better at singing ABBA tunes. Though it's possible they're just sold on my white catsuit.