Zayn Malik has rejoined his One Direction bandmates on stage after illness forced him to pull out of a US TV interview.

The boy band’s fans were concerned when the singer cancelled his appearance on America’s Today Show due to a tummy bug, but he seemed to be back on form as he joined the rest of the group for a show in Orlando, Florida, reported E! News.

Fans quickly took to Twitter using the hashtag #ZaynIsBack after the whole of One Direction treated the audience to tracks from their new album Four, which they are in the US to plug.

Zayn Malik
Zayn Malik had a tummy bug (PA)

The band – and their fans – had been annoyed when Today Show host Matt Lauer suggested during the interview with the rest of the group that drug use could have been a factor in Zayn missing the programme.

The singer himself told The Sun he was “angry and upset by what was said” and explained that he had been too ill to fly to the States at the time.

Now fans have been “trolling” Matt online, calling for him to be sacked after he asked about “rumours of substance abuse” on his show.