Katy Perry Ties Rihanna for Most #1s in Billboard's Pop Songs Chart

Katy Perry's "Roar" blasts 5-1 on Billboard's Nielsen BDS-based Pop Songs radio airplay chart. With the coronation, which dethrones Robin Thicke's "Blurred Lines" (featuring T.I. and Pharrell) after 10 weeks on top, Perry matches Rihanna for the most No. 1s – 10 – in the chart's 21-year history. P!nk follows with nine toppers.

At just six weeks, "Roar" marks the fastest flight to the Pop Songs summit since "California Gurls" (featuring Snoop Dogg), the lead single from Perry's last album, 2010's "Teenage Dream," also soared to the top spot in its sixth frame the week of July 3, 2010. ("Roar" makes the largest leap to No. 1 since "Gurls" logged an identical 5-1 jump.) "Roar" previews Perry's new album "Prism," due Oct. 22.

Having now done so twice, Perry is the only act to send a song to No. 1 in as few as six weeks in more than eight years; prior to "Gurls," no song had reached the apex so swiftly since Gwen Stefani's "Hollaback Girl" (six weeks, 2005)

Here is an updated list of the acts with the most No. 1s dating to the Pop Songs chart's Oct. 3, 1992, launch:

10, Katy Perry
10, Rihanna

9, P!nk
7, Lady Gaga
6, Beyonce
6, Mariah Carey
6, Maroon 5
6, Bruno Mars
6, Britney Spears
6, Justin Timberlake

Also ROAR just slayed #SleepBitch on iTunes US after spending less than a day at #2 lol #ROARBitch

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