Uninvited guests are generally not welcome at a wedding, but sometimes you have to make an exception.

Especially if the wedding crashers in question just so happen to be Twilight heartthrob Robert Pattinson and Irish singer Danny O'Donoghue.

Bride Sarah Andrews married her sweetheart Tom Lenihan on Sunday in Belfast's Culloden Hotel, where R-Patz just so happened to be staying. When guests spotted the actor roaming around, they persuaded him to pose for a few photos, and he was more than happy to oblige. 

"The wedding reception was taking place downstairs, a few of the lads from the wedding had seen him and reported this back to the bride," videographer Reuben Skinner told Mashable.

The Twilight star was a good sport about the whole affair, according to wedding guest James Reid. "I plucked up the courage and went over and said he was going to get mobbed by about 20 girls, he is such a quiet guy and he was a bit taken back by it, all these girls," James told the Irish Independent.

"In fairness, he sat and got his pictures taken until the Culloden staff came and moved him on."

But the star-studded special guest list doesn't end there, as The Script's Danny was also staying in the hotel that evening ahead of a Belfast gig, and stopped to pose for some snaps too. Sound!

 

#thescript #danny #tomandsarahswedding #cullodenhotel #northernireland

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"We came in the main entrance and bumped into Danny from The Script. He was a really nice guy and went out and got pictures with everyone," James said.

Calvin Harris was also reportedly staying on site that evening, but sadly Tom and Sarah missed out on the celebrity hat trick.

We expect the Culloden Hotel is about to get mobbed with wedding bookings…