Rihanna has been getting a little saucy on stage during her Loud tour, guzzling a Corona beer at her Atlantic City, N.J. stop on Monday (July 18) and doing much of the same thing last night (July 19) in Uniondale, N.Y., as she threw back shots during her performance at the Nassau Veterans Memorial Coliseum.

The red-haired songstress, dressed in a floral bandeau top and high-waisted jean shorts, brought out a glass and addressed the crowd before she took a swig of the unknown liquid. "This is to you," she shouted, while extending the cup in the air.

Then, fittingly, Rihanna moved into 'Cheers (Drink to That),' a cut off her fifth studio album, 'Loud.' She performed 'Rude Boy' and 'Unfaithful,' among others, before letting loose the night's biggest surprise: a guest appearance by Kanye West.

The 'My Beautiful Dark Twisted Fantasy' creator rhymed through his Rihanna-assisted songs 'Run This Town' and 'All of the Lights,' all while sporting a leather jacket and red plaid shirt tied around his waist.

"@kanyewest thank you bro!!! U made it a night for New York to remember #poppopgetwell #watchthethrone," RiRi tweeted.