Usually occupied by the likes of Kylie Minogue, Ricky Wilson, Tom Jones and will.i.am, former TOWIE star Kirk looked in his element as he pressed on the buzzer.
Dressed casual in a checked shirt and dark glasses, Kirk captioned the photo: "I want you #TheVoice."
Kirk got the opportunity to sit in one of the chairs after heading to the BBC studios in London to promote his forthcoming trek in aid of this year's Sport Relief campaign.
Earlier this month, Kirk told fans that he would be embarking on a trek of Machu Picchu in Peru to raise money for the ADHD Foundation.
Speaking about the challenge, he said: "I am really excited to be taking part in this charity climb and so pleased to be raising awareness for the ADHD Foundation which does so much to help young people and their families living with ADHD."
And it seems like the donations are pouring in, as Kirk has already raised over £1,000. He said last week: "I'm overwhelmed by everyone's support! Thx guys keep donating for me!"
Kirk will begin his trek on 2 March, so he only has four days to go. Good luck Kirk!
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