Hollywood Crush started the welcome wagon and though the account hasn’t been verified officially yet it seems legit to us based on the fact that an account belonging to a brandonjlutz links to the Kellan account and the Kellan account links back. The Brandon account was established well over a year ago, and at the time of this post the Brandon account was relatively low profile well under 500 followers and not much celebrity posting, pretty much daily life stuff—not really the hallmarks of a fake account. The account also posts a picture of Kellan’s birthday cake which I don’t recall seeing plastered all over the Internet. So we are going to go out on a limb here and say welcome to Twitter Kellan Lutz, and if it later proves to be a fake then hats off, because that would be an elaborate hoax!
EDITED: He has been declared official by Summit and other sources.