The presenter made no secret of her love for the 90s singer during the BBC show, but as the Final Battle drew near, she lent up close to her idol to share a secret.
“Now, Seal, every time that I hear that song, Kiss from a Rose, I like to think that maybe, you’re singing it to me!” she revealed to the shock of the crowd.
The atmosphere in the studio remained light-hearted, while viewers inevitably expected him to play along with the joke, but the singer’s response was unexpected.
“I never thought I would get the opportunity to tell you this Mel,” he said seriously. “You are absolutely… wrong.”
Pitch Battle: Seal told the presenter the song was 'absolutely not' about her
Pitch Battle: The GBBO presenter told the star how she was a massive fan
Pitch Battle: Seal very seriously responded that it wasn't, and Kelis proceeded to call him 'mean'
That was mean!
Suddenly collapsing on the stage in front of the panel, Mel gasped as the audience ‘awwed’ and Kelis chimed in: “That was mean!”
Seeming to backtrack from his harsh response, Seal, 54, conceded as Mel asked who it was actually written for.
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“It was written for you,” he told her.
Mel eventually managed to recover from the slight and continued on with her hosting duties.
Pitch Battle: Who are the judges? Tue, June 20, 2017
Pitch Battle: Meet the judges in the new BBC music competition.
BBC 1 of 9
Pitch Battle: Who are the judges?
Pitch Battle: After collapsing, the presenter then got back saying: 'it's embarrassing'
“I need to stand up because this is embarrassing,” she muttered before getting herself together.
The fourth outing for the series saw some intense battles between a gospel choir, a country guitar-playing girl choir, and a number of musical theatre-inspired choirs.
But the winner was the Portsmouth University Gospel Choir, who performed their showstopper with a standing ovation from all three judges.
Pitch Battle continues next Saturday at 7.30pm on BBC One.