Lady Gaga continues to dominate the pop charts with “Bad Romance”. Taken from “The Fame Monster,” “Bad Romance” claims the summit on this week’s Billboard Pop Songs chart thanks to increased airplay. Released late 2009, “Bad Romance” follows Gaga’s “Just Dance,” “Paparazzi” and “LoveGame,” which also reached similar success on the chart. In related news, Ludacris, prepping for the release of his next album, is one of the week’s top gainers on the Pop Songs chart. His new single “How Low” rockets to no.37 on the Pop Songs chart, becoming the rapper’s fastest moving single since 2007s “Runaway Love” (feat. Mary J. Blige).