[General] It's my great pleasure to invite....

[Silverobama]

Imagine today was my wedding ceremony and I invited Dayo to come and he came. Dayo is a TV star and my idol. Before the ceremony started I said:

It's my great pleasure to invite Dayo here today. He's been my idol for so many years.

Are the italic sentences natural?

 

[Rover_KE]

It's my great pleasure to welcome Dayo here today. He's been my idol for so many years.

 

[emsr2d2]

If you really want to use "invite", you'd have to place it in the past. You invited him in the past and he's here now. It would be very odd to talk about the invitation itself at the wedding. You could mention his acceptance. For example:

I'd like to introduce Dayo. He's always been one of my idols and I was delighted when he accepted my wedding invitation.

 

[Tdol]

It's an honour to have Dayo, an idol of mine for many years, here today.