The iconic composer and impresario's son Nicholas died last month at age 43 from gastric cancer
After 35 years and nearly 14,000 performances that made it the longest-running show in Broadway history, Phantom played for the final time at the Majestic Theatre in New York City, where Andrew, 75, dedicated the curtain call to Nick, who died last month at age 43 from gastric cancer.
"I hope you won't mind if I dedicate this performance to my son, Nick," Andrew told attendees, according to Deadline.
Then, turning to his ex-wife Sarah Brightman — who originated the role of Christine Daaé in the musical — Andrew recalled, "When Nick was a little boy, he heard some of this music."
"Yes, he did," responded Brightman, 62, per the outlet. "When Andrew was writing it, he was right there. So his soul is with us. Nick, we love you very much."
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Based on the 1910 French novel by Gaston Leroux, Phantom opened on the West End in 1986 before making its Great White Way debut in 1988. The latter show was directed by the late Harold Prince.
Andrew announced his son's death in a statement shared with PEOPLE on March 25.
"I am shattered to have to announce that my beloved elder son Nick died a few hours ago in Basingstoke Hospital," he said at the time. "His whole family is gathered together and we are all totally bereft."
"Thank you for all your thoughts during this difficult time," added the iconic composer and impresario.
Nick was the son of Andrew and Sarah Hugill, whom Andrew was married to from 1971 to 1983.
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After Phantom's final performance, Andrew said, per Deadline, "Thank you to absolutely everyone who has made this extraordinary run possible."
"It is just amazing really what has happened, and in the last few months I don't think any of us thought that Phantom would go out quite with the bang it has," he continued.
Hinting at how the show could one day make a return, as many Broadway musicals have over the years, Andrew noted, "It may come back — you never know."
"What I would like to say is if it was going to go out with a bang, it couldn't have gone out with a better performance," he added.
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