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Rihanna is giving fans a taste of what they can expect on her Diamonds world tour, which kicks off in Buffalo on Friday. 

The singer has posted a video of her rehearsals, practicing the routine for the track "Pour It Up" with the choreographer.  

She also released another video previewing the staging preparations.  In it, the tour's production manager Joe Sanchez says that the set for the Diamonds tour will be bigger and "more complex" than anything the star has ever done before. 

He explains that a design crew has been working on the stage since late 2012, and the physical set has taken, quote, "close to eleven million hours" to complete. 

Rihanna will be taking the tour through North America until May, before heading off to Europe in July.