Greek underworld his duty was to bring these souls to the underworld and no one would persuade him to do otherwise. Cerberus (Kerberos), or the "Hell-Hound", is Hades' massive multi-headed (usually three-headed) dog with some descriptions stating that it also has a snake-headed tail and snake heads on its back and as its mane. Born from Echidna and Typhon, Cerberus guards the gate that serves as the entrance of the underworld. Cerberus' duty is to prevent dead people from leaving the underworld. Heracles once borrowed Cerberus as the final part of the Labours of Heracles. Orpheus once soothed it to sleep with
What the Hell into its chorus to great effect, making its slight refrain of "All my life I've been good/But now I'm thinking 'what the hell'" sound more massive than it probably should". Andy Greenwald from Entertainment Weekly was almost neutral in his review, but admitted that the "Farfisa-fueled "What the Hell" [will] restore Avril to her rightful place ahead of Katy Perry and Ke$ha in the Sisterhood of the Negligible Pants". Stephen Thomas Erlewine from Allmusic picked the track as one of the best of the album: What the Hell' approximates Avril's irrepressible brattiness only without seeming much fun at all". "What