*You didn’t think the Michael Jackson tribute concert would go off without a hitch did you? Of course you didn’t and, by the way, it didn’t. Jennifer Hudson is one reason why, reports TMZ:

Hudson’s no-show at the Michael Jackson tribute concert Saturday caught the show’s producers completely off-guard … especially since she was already paid to do the gig … this according to sources close to the show.

JHud tweeted Saturday afternoon she wouldn’t be doing the show — citing “major production issues.”

According to our sources, Hudson is claiming she felt the show’s producers didn’t give her enough time with the music she was supposed to be singing. According to our sources, Jennifer received her music the same time as all the performers.

Our sources say JHud signed her contract and was paid in full.

A rep for Hudson confirms the reason she cancelled, but says producers “completely understood.” Our sources say that’s not the case at all.