Requesting someone to give a speech?

Question

I need to anchor a very formal event. However, I am having trouble with using different phrases in my speech. For example, when I want to call upon someone to deliver a presentation/ speech, I am at a loss of words. Can someone please help me find phrases similar to > "I now request Mr XYZ to deliver the welcome address."

Answer 1

I have the honor of introducing [a very special guest, etc.], _____________, who will speak to us on the subject of __________________.