The Pirates of the Caribbean star used his cellphone to record Perry's powerful speech about the importance of voting, after which she performed her hit single "Roar" to a cheering convention crowd.
Finally, after the balloons dropped and the confetti shot out over the crowd after Hillary Clinton's historic nomination, Bloom and Perry posed for a celebratory snapshot with the singer's bestie, Mia Moretti.
"Four prom dates are better than one," Moretti captioned the colorful pic, which she posted to Instagram after the event ended. "Blessed to have friends that use their hearts & their voices to fight for a fair healthy balanced world, because it is SO SO important! I hope you join us."