Apparently "flash mob" dances are still a 'thing', because the cast and crew of "The Big Bang Theory" recently did one to Carly Rae Jepsen's "Call Me Maybe".
Carly Rae Jepsen's 'Call Me Maybe' is THE hit of the summer. It's so popular that there are literally thousands of covers of the song all over YouTube, rock stars are performing the song in concert and people are making videos like this one...