Carla Bruni made the admission as she appeared on music TV show Later... With Jools Holland.
The singer-songwriter said her husband Nicolas Sarkozy was "very kind" about her music and sometimes even helped.
"I disturb him with it in the middle of the night," she said. "It's a very different world for him but he's very kind and listens to all my doubts."
The former supermodel, who married Sarkozy in February, was given a warm reception on the music show.
Other acts on the bill were Metallica, UK rapper Sway, New Jersey singer Nicole Atkins and British pop newcomer W. Brown.