A.J. McLean

Proof One Direction Is

a Backstreet Rip-Off

12/8/2012 12:02 AM PST BY TMZ STAFF
A.J McLean has rock-solid proof that the new boy band on the block -- One Direction -- is just a Backstreet Boys knockoff ... because Backstreet Boys wastotally original and definitely not a knockoff.

Check out TMZ on TV -- click here to see your local listings!