USHER tickets

USHER tickets
i Have 2 tickets for usher concert on this coming saturday but the problem is my friend hv to do bussiness trip,which is i have 2 tickets with 480 price ticket.Would like to buy for 400 only,so 2 for 800 or u can buy 1 & can go with me to this  USHER concert,just to prove it that it is not fake ticket too???sylvia