Need Help Finding a Specific Episode

I tried trawling through Google but haven't been able to find the source of this specific quote - the brothers are talking about genetics and DNA and Griffin makes a joke about how genes can make you like certain types of music and says 'Hey hey hey hey hey.... You like Panic! at the Disco'. I referenced the quote in a conversation and need the source video to explain myself but can't track it down myself.

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Any help is appreciated!