Double Rainbow
... that Katy Perry's song "Double Rainbow" shares its title with a 2010 viral video?
... that <a href="./Katy_Perry" id="mwCPI" rel="mw:WikiLink" title="Katy Perry">Katy Perry</a>'s song "<b id="mwCPM"><a class="mw-redirect" href="./Double_Rainbow_(song)" id="mwCPQ" rel="mw:WikiLink" title="Double Rainbow (song)">Double Rainbow</a></b>" shares its title with a <a href="./Double_Rainbow_(viral_video)" id="mwCPU" rel="mw:WikiLink" title="Double Rainbow (viral video)">2010 viral video</a>?