Pluto (mythology) . Jupiter got the sky, Neptune got the sea, and Pluto got the shaft." In Riordan's explanation, Hades "was more of a death god," but acquired his identity as a god of wealth among the Romans, along with a new name. Scientific terms derived from the name of Pluto include: Pluto (mythology) Pluto (Latin: "Plūtō"; , "") was the ruler of the underworld in classical mythology. The earlier name for the god was Hades, which became more common as the name of the underworld itself. In ancient Greek religion and mythology, Pluto represents a more positive concept of the god
What the Hell from the album. The song was premiered on 31 December 2010 on "Dick Clark's New Year's Rockin' Eve" during a pre-taped segment along with a performance of "Girlfriend". Lavigne described "What the Hell" as "a really fun, upbeat party song, so it worked out really well to play it for the first time on "New Year's Rockin' Eve"." The following day, "What the Hell" was available as a free download for 48 hours from Lavigne's official Facebook page. "What the Hell" has been described as "bubblegum pop-punk" and synthpop song. The song has been compared to previous Lavigne's single, "Girlfriend"