It's hard enough for people to belt out a fantastically rendered "Happy Birthday" song as a group, but to have cars do it is next to impossible.

Thanks to creative sound engineering, Porsche->ke1 accomplished by way of all seven generations of the iconic 911 wishing itself a happy 50th. Yep. Add "singing proficiency" to the long list of endearing qualities of the Porsche 911->ke282.

Continuing its 50th anniversary celebration for the company's most esteemed model, the entire generational lineup of the 911, beginning with the 1963 911 all the way to the 2013 911, all put their respective engine chords together to sing a pretty cool rendition of the "Happy Birthday" song.

You probably won't realize it until around the end of the video, but once you do, you're going to rewind back to the start, watch it all over again, and then see and hear the video for all of its awesomeness.

Happy birthday, Porsche 911!

Click past the jump to read about one of Porsche's more famous 50th anniversary models, the 911 Carrera S 50th Anniversary Edition

2014 Porsche 911 Carrera S 50th Anniversary Edition

As you probably expected, the 911 Carrera S 50th Anniversary Edition was built as a part of the 911’s 50th anniversary celebration. The model is pretty much a base Carrera S, with added “911 50” badges on both the interior and exterior.

The Porsche 911 Carrera S 50th Anniversary Edition is powered by a 3.8-liter, flat-six engine with a Powerkit (U.S. market only) that can produce 430 horsepower. The U.S.-Spec model will hit 60 mph in only 4.2 seconds with the PDK transmission and tops out at 186 mph (185 mph with PDK).