Jay Chou concert-goers are up in arms once again.

This was after the Chinese pop star's "The Invincible" concert at the Singapore Sports Hub on Sept. 3, 2016, was marred by sound problems yet again -- a repeat of issues that first sprung up two years ago when Jay Chou held his concert at the same venue when it was newly-opened.

Chief among the complainants' gripes: Concert-goers at some sections claim that those who were not seated in line with the speakers or levelled with the stage could only hear muffled sounds and an overpowering bass throughout the show.

This, they said, was what they had to put up with, despite providing feedback after the last concert where they also complained of the same problems.

Angry concert-goers have turned to an online petition to voice their displeasure and seek refunds from the concert promoter, Multimedia Entertainment.

As of 11.15pm on Sept. 5, the petition has received some 1,035 signatures.

The petition reads:

Jay Chou "The Invincible" Concert 2016 Singapore was held on 3rd September.

For the whole concert, audience who were not seated in line with the speakers or leveled with the stage only heard muffled sound and strong bass throughout. NONE of what Jay Chou was singing or talking could be heard sharply and clearly.

This was the same exact scenario two years back when Jay Chou held his concert in the newly opened stadium. Feedback was given back then, Singapore Sports Hub acknowledged the feedback and say will contact the organisers for improvements but there was NO improvements seen last night. And once again, Singapore Sports Hub gave the same template reply to the feedback given last night.

On the seating map, speakers round the stadium was promised but on actual day observation, none was seen.

We as consumers should not just keep quiet about this. Obviously feedback was given but fallen on deaf ears. We paid for it, expecting quality but it was way below quality. Even 7th month getai has better standards.

As such, we should all stand together against this, and ask for refunds.

No one will speak up for you, not the Sports Hub, not the media, only YOU can speak up for yourself.

Your $118 might be little to the organisers, but it means a lot to you, months of savings, meals, bills. Are you going to let what you spent be gone in vain?

We request Multimedia Entertainment, organiser of Jay Chou "The Invincible" 2016 Concert Singapore leg, to make refunds to affected audience, and Singapore Sports Hub to give answers for repeated poor standards of concerts held at the National Stadium.

The Singapore Sports Hub Facebook page has also been inundated with complaints:

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