Kenyan trumpeter Mackinlay Mutsembi is in the race to break the Guinness World record for the longest continuous trumpet performance, playing non-stop for 24 hours.
The race started on Friday, January 31, at Nairobi's Geco Café and is expected to end on Saturday, February 1, at 10:00pm.
Before delving into the details of the marathon, let's get to know our marathoner.
So, who is Mackinlay Mutsembi?