The group headlined a Christmas tour in support of the album.
The orchestra cancelled its 2008 Christmas tour but went back on the road in 2009.
He's also doing a Christmas Tour on his own.
Much of the repertoire is influenced by the choir's two previous sell out Christmas tours.
Williams, who was on a Christmas tour, was unavailable for comment, according to his spokesman.
In 1972, he accompanied Hope on his final Christmas tour to Vietnam.
Berry has at least two Charity performances scheduled for his popular Christmas tour.
Admission to the Christmas tour is $4 for adults, $3.50 for senior citizens, $2 for children 5 to 16.
Last show of the 2011 Christmas tour.
He appeared in multiple Christmas tours during those years in the Netherlands.