Pop superstar continues her wild success this week by matching a record held by Rihanna for most No. 1 singles on Billboard's Pop Songs chart as her latest offering, "Wide Awake," moves 2-1 on the new version of the chart to be published Wednesday.  With "Wide Awake" reaching the summit, Perry has now had nine No. 1s on the chart, giving her as many as RIhanna and two more than Lady Gaga and Britney Spears, who each have seven to place third on the list.  Beyonce and Mariah Carey are tied for fifth with six Pop Songs chart-toppers each.