A silly thing

 Some of you may have seen (and probably more heard the recording of) the surprising Bing Crosby/David Bowie collaboration from the late 1970s:

 

It's surprising, here's Crosby near the end of his life, and Bowie roughly mid-career, and very different styles, and yet they can sing together (and yeah, I've heard the unpleasantness about Crosby, but I've generally heard Bowie was a fairly lovely person). 

About 15 years ago Funny or Die did an almost note-perfect parody of it, with John C. Reilly (who always seems fairly likeable, at least in his roles I've seen) and Will Ferrell (who I liked in Elf, though I've not really seen much of his other work)

 I feel like Reilly's impersonation is slightly better, even though he is a larger man than Bowie was. His accent is maybe a *little* different to Bing's, but I think he's got the cadence down. (I guess Crosby was not actually Southern? I always thought he was maybe from Virginia or one of the Carolinas, given what I hear as a soft "tidewatery" accent, but the internet says no, he was born in Washington state.)

(There are a couple bleeped swear words at the end, playing a bit on the mispronouncing of Bowie's surname - "Bing" pronounces it like Jim Bowie, the Alamo guy.)

But it is entertaining, though mainly as a "wow, they really nailed the performance" than as "this is laugh out loud funny"

(I can't quite tell if they're the ones doing the singing themselves - and if so, props to them - or if it's dubbed)