Jon and his twin brother Dan star together as villains in the fourth instalment of the popular internet martial arts comedy series Sockbaby . Jon's performance in When in Rome was praised by New York Times critic A. O. Scott : "Jon Heder as a goofy street magician is the funniest of the bunch."  In 2012, Heder returned to the role that made him famous by supplying the voice of Napoleon Dynamite in the Fox Network animated series, Napoleon Dynamite , which debuted in January 2012. In 2013, Heder appeared in the music video for " On Top of the World " with numerous other Utah-based actors and musicians, and in 2014 he appeared in the music video for the Chromeo song "Old 45s". 
Upon the film's release, it was noted that the name "Napoleon Dynamite" had originally been used by musician Elvis Costello , most visibly on his 1986 album Blood & Chocolate ,   although he had used the pseudonym on a single B-side as early as 1982.  Filmmaker Jared Hess states that he was not aware of Costello's use of the name until two days before the end of shooting, when he was informed by a teenage extra .  He later said, "Had I known that name was used by anybody else prior to shooting the whole film, it definitely would have been changed ... I listen to hip-hop , dude. It's a pretty embarrassing coincidence."  Hess claims that "Napoleon Dynamite" was the name of a man he met around 2000 on the streets of Cicero, Illinois , while doing missionary work for the Church of Jesus Christ of Latter-day Saints (LDS Church).