Josh Duhamelis revealing more details abouthis pre-wedding injury.

During a Tuesday appearance onThe Late Late Show, the 49-year-old actor detailed to hostJames Cordenhow it all went down on the post-rehearsal-dinner party bus the night before his “I do"s withAudra Mariin North Dakota.

“So I think I’m gonna hang from the rafters inside this party bus and start crowd surfing across the top of it,and I throw my back out,” recalled Duhamel, adding that he couldn’t “get up out of bed” the next morning — a.k.a. the day of the wedding.

“The one day you have to be able to walk is down that aisle,” said theShotgun Weddingstar. “And it was, like, touch and go right up until an hour before the wedding.”

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Josh Duhamel.The Late Late Show with James Corden/YouTube

Josh Duhamel Says Wedding Day with Audra Mari Was ‘Touch and Go’ Until an Hour Before Due to Injury

Duhamel went on to say he got “shot up” with medication at the emergency room — which got him through the wedding, as he was “fine the whole night.”

“And then woke up the next morning, couldn’t get out of bed again,” he said.

Joked fellow guestJudy Greer,“Forotherreasons … “, leading to laughter from Duhamel, the audience and Corden, 44.

As for how his back is doing now, Duhamel said, “It’s pretty good.”

“It’s on!! She found a message in a bottle that washed ashore and said YES!!@audramari,” the actorcaptioned the shotof the pair smiling, while he held up a handwritten letter that read, “Audra Diane Mari Will You Marry Me?”

The twotied the knot on Sept. 10in Fargo, North Dakota.TMZ, who was first to report the news, said that Duhamel and Mari, 28, wed on the rooftop of the area’s Jasper Hotel, citing an eyewitness.

Representatives for Duhamel did not immediately respond to PEOPLE’s request for comment, but a source who went told PEOPLE the pair had “a great time” and that the evening “was lovely.”

source: people.com