Sir David Attenborough is England’s finest natural history filmmaker, best known for his Life collection, a series of nine nature documentaries aired on the BBC between 1979 and 2008. It’s widely considered the standard by which all other wildlife programs are measured.

In recent weeks, British and American audiences have been treated to Attenborough’s latest production, Frozen Planet (see trailer below). It’s thought to be his last major program with the BBC, and to commemorate this milestone, the ad agency RKCR/Y&R has produced a moving video that features Attenborough reading lines from “What a Wonderful World” — you know, the Louis Armstrong classic – as scenes from Attenborough’s documentaries fill the screen.

The ad agency introduced the video last week with a little blog post, which concluded by saying: “If you’ve had a shitty journey into work today, I promise, this will put your smile back in place.” We could haven’t have said it any worse or better.