The Voice UK may have found another potential coaching star, as singer Tom Grennan has reportedly filmed a surprise guest appearance alongside new judge Aitch for the show’s upcoming 2027 series.
According to The Sun, Grennan secretly recorded scenes for the ITV singing competition after being invited by his longtime friend Aitch. The pair reportedly filmed during the Battle stages, with the sessions taking place at ITV’s studios in Salford in recent weeks.
The unexpected collaboration could be more than a one-off appearance. A source told the publication that Grennan impressed producers during filming, prompting discussions about whether he could eventually become a permanent coach.
The insider explained that the invitation was an easy decision for Aitch because the two musicians have been friends for years. Grennan’s own journey in the music industry was also seen as an advantage, as he could relate to contestants working to establish themselves.
Although Grennan has not previously appeared on reality television, his reported performance behind the coaching chairs may have opened the door to a new opportunity.
Aitch Brings Another Familiar Face to The Voice
Aitch, who has been filming the new series in recent weeks, is among the latest additions to The Voice UK. Inviting Grennan gives the rapper an opportunity to bring someone he knows well into the competition, while offering contestants advice from an artist with experience navigating the music business.
The reported appearance follows a growing pattern of coaches bringing guest stars into the show to help them make important decisions.
Earlier in the current series, will.i.am enlisted Cheryl to help select his final three contestants. Kelly Rowland also brought in Australian singer Delta Goodrem for the Battle stages in scenes that aired the previous weekend.
Grennan’s appearance would continue that format, although the possibility of him becoming a regular coach remains under discussion rather than a confirmed appointment.
For viewers, the pairing could also offer an entertaining change of dynamic, with two established friends sharing the screen while evaluating aspiring singers.
Tom Grennan and Aitch Have Music in the Works

The television collaboration is not the first time Grennan and Aitch have worked together. In 2023, Aitch revealed on Instagram that he had recorded a song with Grennan, describing the track as a banger.
The song has yet to be officially released, but Aitch gave fans another glimpse of it in February when he played it during a livestream. A source told The Sun that the musicians have actually recorded more than one song together, although they are still deciding when the material should come out.
Grennan was also due to release his comeback single, Wrapped In Gold, on October 22. The track is associated with his upcoming fifth album, which is expected next year.
With new music on the horizon and a reported appearance on one of the UK’s best-known singing competitions, Grennan could have plenty to keep fans talking.
For now, his potential future as a permanent Voice UK coach remains uncertain. But if the reported guest appearance has impressed producers as much as the source suggests, this surprise television collaboration may not be the last time viewers see him in the coaching chair.
Source: Compiled from various sources.
