The idea was to give fans a specific section to boost the noise levels in Old Trafford, and it caused some mirth at the time.
However, after its debut journalists have already made some encouraging comments about its success:
Correction!: Thought United's singing section worked well last night. The atmosphere was definitely better than it has been of late anyway.— Tony Barrett (@TonyBarretTimes) October 24, 2013
Two stand-out performances at Old Trafford tonight were Shinji Kagawa and the Singing Section. United should use both more often.— Rob Dawson (@RobDawsonMEN) October 23, 2013
Coach Phil Neville, meanwhile, also sang its praises:
Good win tonight loved the singing section-made for a great atmosphere hope we do that again!!— phil neville18 (@fizzer18) October 23, 2013
And if you weren't there, you can judge for yourselves as some United fans have made a video blog of the action and the singing from the section.
It's 25 minutes long, but it certainly gives you a flavour of what you can hear.
United plan to roll out the scheme for future home Champions League games, according to the Daily Telegraph, but will not be doing the same for now in domestic fixtures.