The French billionaire is doing what he can to help rebuild the beloved landmark.
The former Disney star says the event leaves her "feeling inspired and hopeful."
The 29-year-old singer said she was "so grateful" for the organization's work.
Some music and entertainment A-listers are using their voice to spread awareness and support.
The superheroes made the heartwarming appearance to kick off 'Avengers: The Universe Unites,' an epic event for kids' charities.
ET was with the 'Fuller House' star as she visited the Salvation Army Bell Shelter in Los Angeles.
The actress makes giving back a priority.
A score of celebrities are putting their money to good use.
The singer also dished on supporting Cure 4 the Kids Foundation with donations from her show at Planet Hollywood.
ET has a special look at the actress' trip to Rwanda with World Vision.
The 'Middle' actress recounts her amazing journey to Rwanda with World Vision.
ET was with Heaton as she and the people of Huye, Rwanda, celebrated bringing a water pipeline to the community.
'The Bachelor' hunk talked to ET about battling nerves to make his singing debut on the band’s long-awaited new single, ‘Hello World.'
See photos of the prince's fun-filled visit to a London youth center!