Ozzy Osbourne pulled out of an Ozzy and Friends concert appearance at SAP Arena in Mannheim, Germany on Wednesday due to health concerns (note that this was NOT a Black Sabbath concert as some sources are reporting).

Ozzy was scheduled to take the stage after the group Black Label Society but a man (unknown if a promoter or rep for the venue) came on stage to announce the cancellation. According to Osbourne"s reps, the singer had a concern over the quality of his voice and decided not to go forward with the performance. They added that, overall, his health was fine.

Representatives for the venue have advised ticket holders to check their website for news on whether there will be a rescheduled date.

It has been a rough week of Osbourne and his family. It was recently revealed that son Jack is suffering from multiple sclerosis.

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