Katy Perry To 'Roar' on First 'Prism' Single?

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April 22: Katy Perry gets snuggly with Smurfette during 'The Smurfs 2' photo call at The 5th Annual Summer Of Sony in Cancun, Mexico.

We now know that Katy Perry's immensely anticipated third album will be titled "Prism" and is hitting shelves on Oct. 22, thanks to a giant golden truck that was rumbling through Los Angeles on Monday (July 29). And while few details are known about the actual music on the "Teenage Dream" follow-up, its first single may have a particularly ferocious title.

According to Idolator, Perry's forthcoming single will be titled "Roar." The track was reportedly written by Perry along with Lukasz "Dr. Luke" Gottwald, Max Martin and Bonnie McKee, who previously collaborated on Perry tracks like "Teenage Dream," "Last Friday Night (T.G.I.F.)" and "California Gurls." (Ed. note: this piece previously did not include Perry as a reported writer on "Roar," and has been updated).

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Although a rep for Perry did not respond to a request for confirmation at press time, Dr. Luke sneakily posted on Twitter last week, "and the new song starts with an 'R' …." When a fan asked, "katy perry's song?" the good Doctor replied, "maybe ;-)"

Need more (speculative) evidence that "Roar" is a logical single title? As Idolator points out, Perry's two fragrances are named 'Meow' and 'Purr.' What better way to nudge Perry toward a more adult pop sound than to let her KatyCats hear her "roar"?

Perry -- who recently passed Lady Gaga to become the most followed female celebrity on Twitter -- scored five No. 1 hits on the Hot 100 with "Teenage Dream," tying Michael Jackson's record for the most chart-toppers from a single album. Before the October release of "Prism," Perry will head to Las Vegas in September to perform at the 2013 iHeartRadio Music Festival.