Billboard fixed the article
Pop Songs
*** No. 1 (1 week)*** "Just Give Me A Reason" P!nk Featuring Nate Ruess
A week after P!nk rewrote the record for the most No. 1s (eight) in the 17-year history of Billboard's Adult Pop Songs radio airplay chart with "Just Give Me a Reason," featuring fun.'s Nate Ruess,
she takes the song to No. 1 on Pop Songs (2-1), where the song is her ninth leader. On the latter list, she equals Katy Perry (nine No. 1s), with both trailing only Rihanna (10), who falls to No. 2 after two weeks on top with "Stay," featuring Mikky Ekko.
http://www.billboard.com/articles/co...1-on-pop-songs