VIDEO : Katy Perry Jokes About Ryan Phillippe Dating Rumors

Katy Perry and Ryan Phillippe had very different reactions to tabloid speculation that they are dating -- at least according to their Twitter accounts. Reports began circulating recently at the ?Firework? singer and the ?Secrets and Lies? star had begun dating after being spotted ?totally flirting? at Elton John?s 70th birthday gala, but Phillippe was quick to dismiss them -- though he did seem particularly bothered by the attention. SHE IS NOT HERE. thx,? Phillippe wrote on Twitter Sunday.