KATY'S COMING TO U.S. ARENAS

Katy Perry has revealed details for the U.S. portion of her Lifetimes Tour, which starts 5/7 in Houston and will visit arenas through 8/23 in Miami.

The artist previously announced extensive dates in Mexico, Australia, Canada, South America, the U.K. and Europe, with the Live Nation trek set to begin 4/23 in Mexico City and conclude 11/4-5 in Paris.

Lifetimes comes in support of Perry's latest album, 143 (Capitol). Tickets begin going on sale Tuesday (1/28). Surf to Perry's website for details.

The artist, who is booked by CAA's Mitch Rose and Nat Farnham, is among the dozens of stars signed on for the FireAid benefit on 1/30 at Intuit Dome and the Forum.

In related news, you're gonna hear HITS roar unless we chug another Caramel Ribbon Crunch Frappuccino, stat.