John Mayer, Get Ready to Walk Down the Aisle: Katy Perry Catches Wedding Bouquet at Grammys! (VIDEO)

Katy Perry and John Mayer attended a Grammys after party together.

Katy Perry and John Mayer attended a Grammys after party together.

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Could Katy Perry and John Mayer make it official sometime soon?

If they follow an old tradition!

Shortly after Madonna, Macklemore and Ryan Lewis finished their performance of “Same Love” and “Open Your Heart,” and Queen Latifah officiated the marriages of 33 couples right in the audience, Katy caught something very special…

…a bouquet from one of the brides!

"The audience was standing and cheering," a guest in the crowd tells In Touch.

"Jay Z could hardly contain himself as he congratulated people, Keith Urban was crying and Katy was all smiles after she caught the bouquet! She was cheering with her brother."

As wedding tradition goes, the floral arrangement is tossed to single women with the belief that the receiver will be the next to marry. (John, any response?)

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Marriage rumors have been following the “Roar” songstress, 29, and her crooner beau, 36, over the past few months.

He even refers to the brunette bombshell as his “wife” already!

“He kept calling Katy his wife,” an eyewitness reveals to In Touch about the duo backstage during their Good Morning America appearance on Dec. 17.

“He said things like, ‘I just do whatever the wife says,’ and then the both of them would laugh. It was like looking at an old married couple.”

Unlike last year, John didn't accompany his leading lady to the show on Sunday night.

Her brother, David Hudson, was on her arm instead.

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John was, however, her date to the Sony Music Entertainment after party.

Katy, who’s been married once before to Russell Brand, gave a bewitching (literally) performance of her new single, “Dark Horse” featuring Juicy J, at the Grammys.

The beauty pretty much performed witchcraft onstage — looks like someone watched The Craft one too many times in her teens.

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Check out both her and Macklemore & Madonna’s performances below:

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