Better late than never!

More than three months after her lavish, top-secret wedding to Russell Brand, Katy Perry finally shared a few glimpses of the ceremony in the most public way imaginable: During her performance at Sunday's Grammy Awards in L.A.

As Perry, 26, crooned her sweet ballad "Not Like the Movies" while perched on a swing, a video of the singer and Brand, 35, exchanging their rings and kissing was projected on a giant curtain behind her.

After a whirlwind courtship that began in fall 2009, the "Teenage Dream" singer and British comic actor tied the knot Oct. 23 on a tiger reserve in northern India; Perry wore an Elie Saab haute couture dress.

Brand -- and Perry's 90-year-old grandmother -- were the singer's escorts at Sunday's Grammys bash.