Now that Robsten has broken up, each respective member is handling it in their own way. And while Kristen Stewart is possibly having her life force slowly drained by Taylor Swift, Robert Pattinson is hanging out with good friend Katy Perry -- and stealing all the thunder from the wedding of a random couple.

Katy, 28, and Rob, 27, were meandering around San Ysidro Ranch in Santa Barbara, Calif. when they stumbled upon a wedding rehearsal. Possibly inspired by the promise of free shrimp, they took a seat and became spectators.

Stephanie Sands, a wedding guest, told PEOPLE, "Katy and Rob were just sitting next to each other watching the wedding rehearsal in the main courtyard area."

But not so fast. Don't set a Google alert for "Perryson" any time soon.

"They were dressed very casually. She was wearing a hoodie and big sunglasses. There was no PDA between them and no body language that showed they were dating. They just sat together and watched." (Who else wore "a hoodie and big sunglasses"?)

Sands said she hadn't the faintest as to why the two were there, adding, "[Katy and Rob] were not affiliated with the wedding party and were not seen mingling with guests."

Apparently, platonic celebrity friends are really running out of things to do. Who knows? This could be a new trend. So if you have a garage sale or retirement party coming up, keep an eye across the street in case Mickey Rourke and Cloris Leachman show up.

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