Twice each day we scan our YouTube metrics as well as websites on the cutting edge of internet culture to discover the most buzzed about videos.

I'm Still Hot	VOLTRON The End	Timber	Keep Walking, Brazil

1. Attention grabbing video from The Lifeline Program featuring Betty White at the Los Angeles Zoo and rapping. As seen on HuffPost.
2. Filmmaker Alex Albrecht presents a live action adaptation of the 1980s animated classic series "Voltron." As seen on Blastr.
3. This stop-motion short film -- and its message about conservation -- first trended back in February and is spiking again after being featured on Reddit.
4. Johnnie Walker's big new Brazilian ad is one of the most shared videos in that country.