BBC Breakfast was hosted by Louise Minchin and Charlie Stayt and the latter was filling in for Dan Walker who was absent from presenting duties due to climbing Mount Kilimanjaro for Comic Relief.
Viewers tuned in to see him on a live video link from Tanzania where he was joined by Shirley Ballas and Osi Umenyiora.
“Normally they’ve got a question in the studio,” Dan explained to the other celebrities, and joked: “I’ll answer the question they’re all thinking about at home at the moment, Shirley is five foot two by the way. OK, but if you’ve got a question I can put it to one of these two guys.”
Louise then asked her co-star: “I think the question is, what has been the toughest thing so far Dan?”
Whilst Shirley and Osi explained first, Dan then surprised viewers with his answer.
“For me it was definitely those two hours of altitude sickness, just to show how it affected me I genuinely lost my memory, I lost about an hour of the day.
“Apparently I told Jade [Thirlwall] from Little Mix that she was a rubbish singer! I have no memory, I have no memory of that!” He revealed laughing and clarifying it was down to the effects of altitude he was experiencing.
“And we shared a moment at the top where she really looked after me, and she gave me a strawberry lace. We’ll always have that moment whatever happens,” he concluded.
It comes after Dan expressed he “had a bad day yesterday” due to suffering from altitude sickness.
“It was a bit serious the altitude sickness wasn’t it,” Dan remarked to which Shirley and Osi agreed. “It just hit me from absolutely nowhere.
“Anita [Rani] was down the day before that as well, and it came to the point where if I got any worse, I think I would have been going home.
“But the great thing about this trip is the nine of us have just bonded incredibly,” he continued.
Joining Dan, Shirley and Osi on the climb is former MP Ed Balls, Love Island 2018 winner Dani Dyer, and Pointless host Alexander Armstrong.
The nine celebrities are taking part in Kilimanjaro: The Return, where they are attempting to tackle Africa’s highest mountain.
Over the course of eight days, they will trek up 5,895 metres, braving tough terrain, high altitudes and potential illness, all to raise awareness and funds for Comic Relief.
Elsewhere on BBC Breakfast, whilst Dan is busy climbing the mountain, Charlie has been distracting viewers.
Yesterday Louise had to apologise to those watching at home for Charlie breaking part of the set.
During Steph McGovern’s business report, Charlie was fiddling around with his computer mouse on the other side of the studio.
When the camera returned to them, he had to comment on the mishap and apologise which left Louise laughing.