Lewis Capaldi told a fan that she might get dumped after she ditched her boyfriend on his birthday to go to the Scots star's gig.
The Pointless singer spoke to a woman in the front row during his gig in Birmingham last night.
The fan told Lewis that she had left her partner at home on his birthday, which left the singer shocked. Lewis asked her how she could be so ruthless, and said: "He may dump you!"
And Lewis wasn't best pleased when the fan revealed that her partner Tom had missed the gig because he was not a fan of Capaldi's music, writes Birmingham Live.
Lewis then got the crowd to chant 'f*** you Tom' in unison. The insult rang around the packed-out arena, leaving the woman in hysterics as she filmed their interaction.
The 26-year-old then added: "If anyone sees Tom...let him know I'm looking for him."
Lewis will be on tour until March, which is ending in Munich. He will then be playing a massive outdoor show in Edinburgh's Royal Highland Showgrounds, which was only recently announced.
Tickets for the Edinburgh show sold out in a matter of seconds as 30,000 fans snapped up briefs for the event.
The Pointless singer took to his Twitter to express his shock, saying: "actually properly lost for words 30,000 of ya just sold this out in seconds!!!!! i am your humble king."
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