Beyoncé just stopped the show before it began!
Ch-ch-check out the AH-Mazing opening performance (above)!
How adorbz was Katy Perry last night, getting her POTUS swag on?!
Katy kicked off the America Forward! Grassroots event in Las Vegas last night with Let’s Stay Together and then went into some of her own hits, like Firework and Wide Awake!
Check out Mz. Perry looking presidentially spectacular (above)!!!
Katy urged the audience to vote — especially her young fans — and Barack seemed happy to have her support! Though, who wouldn't be?!
Not only did the Prez thank Katy, but also her Grandma, AKA the shining star of Katy Perry: Part Of Me!!
Our California Gurl took to Twitter afterwards, gushing:
So tonight was a great night! The PRESIDENT gave grandma and I unforgettable shout outs & now I am officially 28! Best. birthday. ever.
— Katy Perry (@katyperry) October 25, 2012
Not quite sure how she could possibly top that next year! LOLz!
LOVES it! Happy Birthday Katy!!!