Do you know the title of the music usually use by the DJ's in corporate awarding events? when the host of the event calls the person to be awarded they play a music like yanni type of music before the person reach the stage.

IMO, this is generally referred to as "walk on" music - but there's no specific song or even type I've ever heard of.

I've participated in dozens, possibly hundreds of corprorate shows and the walk on music changes show to show.

Sometimes the music is associated with the person. For instance if George Lucas or John Williams were to get an award, the Star Wars theme would likely be their walk-on music. Stallone would get the Rocky theme. For the president it's Hail to the Chief.