1. A Tiger and an Alsatian

The cartoons would have you believe that cats and dogs are natural born enemies, but that's certainly not the case for this tiger and zookeeper's Alsatian. Look out for a cute bonus when the tiger's cub gets in on the action.

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There’s something special about interspecies animal friendships, perhaps because they demonstrate that if animals can put aside their differences, there’s no reason we humans can’t do the same.

Ethan W. is on his way to YouTube stardom. A few new videos of the smiley six-year-old playing classic piano pop songs have been uploaded, and one of them — Billy Joel’s “Piano Man” — has caught fire on the web, garnering nearly 80,000 views in three days.

We’ve seen many remarkable kid musicians on YouTube, but Ethan is particularly amazing. According to the description on the videos, he’s playing the songs from memory — in some cases, after hearing them only once.

Check out more of his stellar performances below. It may well be the best thing you’ve seen all day.

1. "Piano Man" - Billy Joel

The Hangover star makes a cameo in the Procter & Gamble brand’s new ad that shows a guy getting buff and cultivated by listening to a self-help cassette that he clips to his belt (in the shape of an Old Spice antiperspirant package, of course.)

The cassette’s message leads him to win a race against horses, drive an “environmentally friendly sports sedan” and end his relationship with Graham.