Complex sentence: He also served on the boards of numerous not-for-profit organizations, and was asked by Irving Berlin to help oversee the disbursement of royalties for Berlin's "God Bless America" to charity.
Split into simpler sentences: He also served on the boards of numerous not-for-profit organizations. He was invited by Irving Berlin to help oversee the disbursement of royalties for Berlin's popular song, "God Bless America," to charity.