Complex sentence: In addition, she was an honorary chair of Toronto's annual Fashion Cares, one of the world's largest HIV/AIDS fundraising events, is on the honorary board of Gilda's Club, and has been involved with numerous charitable organizations over the years.
Split into simpler sentences: In addition, she was an honorary chair of Toronto's annual Fashion Cares, one of the world's largest HIV/AIDS fundraising events. She is also on the honorary board of Gilda's Club and has been involved with numerous charitable organizations over the years.