LAS VEGAS (AP) - After weeks of speculation, Caesars Entertainment is confirming that it's trying to lure Britney Spears to Las Vegas for a recurring gig at the Planet Hollywood Resort and Casino. Spokeswoman Emily Wofford said Friday the company is in negotiations to install the pop princess on the Las Vegas Strip. The 31-year-old "Scream & Shout" singer stoked residency rumors last week by responding with a "Viva Las Vegas" hashtag to a post from her dog's Twitter account asking if puppies can gamble in Sin City. Spears left her position on the television singing contest "The X Factor" in January, telling fans she wanted to refocus on her music. Caesars Entertainment currently is promoting residencies by singers Cee Lo Green at Planet Hollywood and Shania Twain at Caesars Palace.