John and Edward Grimes, 18, will take to the stage in front of some of the biggest names of the small screen at the 15th anniversary event.
The track they will perform at the event on January 20 is being kept under wraps, but a show spokesman said the 02 Arena would be decorated with thousands of Swarovski crystals for Jedward’s performance.
The teenagers’ performance, like the rest of the National Television Awards, will be broadcast live to millions of viewers on ITV1.
The Irish twins gave wacky renditions of Ghostbusters, We Will Rock You and Oops, I Did It Again on The X Factor before being voted off the talent show.
The X Factor, Strictly Come Dancing, Britain’s Got Talent and Dancing On Ice battle it out for best talent show at this year’s National Television Awards, hosted by Dermot O’Leary.