The news was confirmed on spin-off show Britain's Got More Talent following the first live semi-final of the series.
However, it has been confirmed that the wildcard will be chosen from this year's third-placed semi-finalists - those who just missed out on a place in the final.
Judges Simon Cowell, David Walliams, Alesha Dixon and Amanda Holden chose to give boyband The Mend a second chance at the grand prize during the 2012 series.
Operatic sandwich shop workers Richard and Adam were the first act voted through to this year's Britain's Got Talent final by the public on Monday (May 27).
11-year-old singer Arisxandra was also put through ahead of dance troupe Youth Creation when Simon Cowell sent the judges' vote to deadlock.
The Britain's Got Talent Live Shows continue on Tuesday night (May 28) at 7.30pm on ITV.
Watch Britain's Got Talent semi-finalist Alice Fredenham - who will perform on Tuesday - talking to Digital Spy below: