Paul Potts is to perform on the season finale of America's Got Talent next month.
The Britain's Got Talent champion, who releases his debut album One Chance this week, will sing in front of judges Piers Morgan, Sharon Osbourne and David Hasselhoff on the US version of the hit TV talent hunt.
His wife Julie-Ann has been given a three-month sabbatical from her job in insurance to allow her to accompany him on the trip.
An insider said: "Paul really wanted her by his side to experience all of this - especially while everything is so new. She's been able to live through every moment with him.
"Paul has only had chance to return home once for a few hours since winning Britain's Got Talent as he's been so busy recording the album, so he's delighted Julie-Ann has been able to travel with him."