If you are referring to the Linkin Park Lead singer chester Bedingfield, then sorry to bust your chop, but he cant sing the way he sings in real life, Linkin Park songs are Half done with expensive computers and other equipment, and for example 65% of Session from Meteora was done with computers. I have videos of live performance of Linkin Park, and the songs dont even sound half as good as they do actually.
So, to your question, with a little practice, I know many who sing nearly like him...