In case you:

a) have been living under a rock
b) are only friends with your mom on Facebook
c) don't use Twitter
d) don't know anyone with a smart phone

...the latest trend is face-swapping apps, and the subsequent pics that come of them are often hilarious.

The folks at the E! mashed up all the characters from Friends, and the results are epic.

Naturally, Keith and I got in the MIX too (see what I did there?)...