Thanks for the tip!
Confirmed in AE10 running on Snow Leopard on Macintosh.
WARNINING: It's really freakin' L-O-U-D!!! Turn down your audio output before truying to get this Easter Egg.
hahahahahaha.. me too! i was like really really really shocking when i accidentaly did this! hahaha.. why did they do this? for what? what the correlation between easter egg and after effects? lol