WATCH: Obama sings 'Purple Rain' to trick-or-treater dressed as Prince

Photo courtesy: The White House

There were no shortage of Prince costumes out this Halloween, but few were cuter than a toddler dressed as The Purple One who was trick-or-treating at the White House Monday. 

Even President Barack Obama loved the costume, stopping to sing a few lines of Prince's hit song, "Purple Rain," to the young trick-or-treater. 

Watch the fist 10 seconds of the video to see the adorable interaction.