Fifth Harmony were originally pencilled in to perform on 'The Ellen DeGeneres Show' on April 26.

The appearance was not officially confirmed on the show's own website but was mentioned in listings issued to television providers.

However, the show's official website has now confirmed that Fifth Harmony will appear on this Friday's show (April 29).

An official message from 'The Ellen DeGeneres show said:

“They may ‘Work from Home’ on the regular, but today, they’re all over Ellen’s stage… FIFTH HARMONY will perform their #1 hit from their upcoming CD, “7/27”…the weekend has arrived this Friday on Ellen."

It is not clear what prompted the delay or whether the new airdate will affect when the performance is being taped.

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Watch Fifth Harmony's previous 'The Ellen DeGeneres Show' appearances below: