Thanks to supporters like Katy Perry, Hillary Clinton is clearly not a dark horse. 
The pop star took over Clinton's Instagram page Saturday, hours before Perry was set to perform at a rally concert to stump for the presidential candidate. Clinton will then attend the Democratic Party's Jefferson-Jackson Dinner in Des Moines, Iowa on Saturday evening.
In her first post on Clinton's page, Perry shared an image that apparently showed her own fingernails with Clinton's campaign logo painted on them. 
Perry captioned the shot. "The stage is set, and the nails are pressed. T-minus 1.5 hours before we Roar together. #ImWithHer -Katy."
Perry, known for such hits as "Teenage Dream," "Roar" and "Dark Horse," also posted a photo of her niece drawing on an image of Clinton in a coloring book, along with a pic of Perry herself posing with a Clinton campaign volunteer in Iowa. 
Perry's posts to Clinton's Instagram page can be seen below.