Subject: Request to Perform at Our Charity Event 

Dear [Singer's name],

We are organizing a charity event in [location] on [date] and we would love to have you join us. The proceeds will go towards helping [cause] and we need as much support as possible. 

We think you have the potential to capture the audience’s imagination with your talent and make the event a huge success. If you are interested in performing for us, please let us know.

We would love to discuss the details with you and we'd be happy to answer any questions that you may have.

Thank you for your time.

Sincerely,
[Your name]
Scrivi un'e-mail a una cantante chiedendole di esibirsi in un evento di beneficenza.