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Katy Perry has lined up her next tour. 

On Sunday, the star sent out a series of caps-locked tweets announcing a worldwide trek in support of her latest album Prism.  Official tour dates arrive on Monday.  The star says she plans to play "all of your favorite songs AND all the brand new ones." 

Katy's 2011 "California Dreams" tour was one of the highest-grossing tours that year.  While she's been intent on distancing herself from the candy-colored look of her "Teenage Dream" days, Katy's promised fans to deliver the same level of entertainment for her "Prism" tour. 

This week will also bring a new music video from the star.  Her video for "Unconditionally" is set to premiere on Tuesday night.  

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