Lady Gaga thinks the city of New York, where she was born and raised, is her husband.

The Born This Way hitmaker explained she watched the collapse of the city's twin towers on September 11, 2001, from the roof of her school as she held the hands of her friends, reports femalefirst.co.uk.

"I watched the towers fall from the roof of my school, holding all my best friends. I don't know ... just, my affinity and my love and the relationship I have with New York City - it's like the husband I never married," she said.

"I wrote so many songs on this for my new album about New York City. I mean, every song on all my albums has some relationship to New York city, but one in particular 'Marry The Night,' that record is about my husband, New York," she added.

Tags: 9/11, 911, Born This Way, Edge of Reason, Lady Gaga, music, New York City, September 11 2001, twin towers, world trade centre