Britney Spears’ “Till the World Ends” features some of the most banal lyrics in recent pop music memory. Of course, that doesn’t make the second single from “Femme Fatale” any less fantastic. Unlike fellow superstars Taylor Swift and P!nk, Spears is less interested in provoking meaningful thoughts at this point in her roller-coaster career, and just wants to move bodies. Fortunately, this throbbing track (co-written by another dancefloor princess, Ke$ha) features a dazzling mix of slinky electro-pop synthesizers expertly arranged by Dr. Luke, Max Martin and producer Billboard. While “Femme Fatale” lead single “Hold It Against Me” showcased an inspired, if out of place dubstep breakdown as its most unique feature, “World” is rocked by a jubilant chorus that builds into a blazing, double-time refrain. In the eye of the storm is a seductive, confident Spears, who simply wants this musical piece of heaven to spin until the world ends.