Everyone is losing it over this gospel singer's phenomenal vocal range

24 February 2017, 12:10 | Updated: 28 February 2017, 09:45

Bottom D to top A# - this masterclass will blow you away.

Gospel singer Callie Day was rehearsing 'Hear My Prayer' - and thanks to a little mobile footage we're left with what is one of the most mind-boggling displays of vocal range, agility and virtuosity you could ever hear.

Callie is a Doctoral Candidate in Vocal Performance at University of Kentucky and has recently launched this campaign to make her first recording.