鈥淚 said, 鈥楯ust open up the door, I can get in myself,鈥欌�� Ellis remembered.

Prince finally relented, and Ellis wrote and performed in “Graffiti Bridge,” the sequel to “Purple Rain.” 

鈥淚t was just the experience of a lifetime.鈥�

Extra credit is a series where 麻豆精品鈥檚 video team shares interesting tidbits that didn鈥檛 make the final cut. Watch the full documentary about Ellis鈥檚 school, which uses hip hop to engage who have struggled in traditional schools: Hip Hop Is Saving Teen Lives in Minnesota