What do tigers dream of????

I have awesome in-laws. Meet Matt Heihn. Devoted father, doting husband, semi-perfectionist and your stereotypical oldest kid (which is probably why i like him so much- oldest kids are the best, most productive, and typically the solar system of any family unit). He is great at remembering jokes, and apparently memorizing songs, as depicted below, in his debut music video covering "What do tigers dream of?" from the Hangover...

Also, what's up with him and this knife? Does anyone else find this mildly disturbing???

PS- i do NOT have his permission to post this online, so enjoy his song while you can...it could be short lived :)