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Attentive Black Keys fans may have noticed something familiar about the theme song for the new Netflix series, "BoJack Horseman."  It was penned by Keys drummer Patrick Carney and his sax-playing uncle Ralph Carney. 

The animated show also features a new tune from Grouplove over the end-credits dubbed "Back In the '90s (BoJack Theme Song)." 

The latest Netflix original stars Will Arnett as the voice of the title character, as well as Aaron Paul, Alison Brie, and Amy Sedaris.  The entire first season of "BoJack Horseman" is available on Netflix now.