Call Me Maybe” — the ubiquitous debut U.S. single from Schoolboy Records/Interscope recording artist Carly Rae Jepsen — has hit No. 1 on the Billboard Hot 100 chart. The platinum-certified track, which Jepsen co-wrote, is also No. 1 on the Billboard Pop chart this week. Jepsen is the first female artist to top the chart with a debut single since Ke$ha’s “TiK ToK” in January 2010. “Call Me Maybe” has sold over 3.2 million singles and spent four consecutive weeks atop the Billboard Digital Songs chart. Certified quintuple-platinum in Jepsen’s native Canada (where it hit No. 1), the track is also an international sensation, climbing to No. 1 in the iTunes Singles charts in the U.K., Ireland, Australia, New Zealand, Norway and more.