Paramore's "Ain't It Fun" #1 on Billboard Adult Pop Songs Chart
An excerpt from the Billboard article confirming the news can be found below.
"More than eight years after the band first graced a Billboard chart, alt/pop trio Paramore scores its first No. 1 on an airplay ranking, as “Ain’t It Fun” lifts 2-1 on Adult Pop Songs. The coronation is the song’s latest honor, as it became the band’s first Billboard Hot 100 top 10 (reaching No. 10) on the May 24 chart."