Ozzy Osbourne is feeling “much better” as he prepares to return to the stage at Power Trip Festival this autumn, according to his wife Sharon.This week, it was announced that Ozzy will perform at the Empire Polo Club in Indio – the venue for Coachella – in October as part of the inaugural metal and heavy rock event. AC/DC, Metallica, Guns N’ Roses and Iron Maiden are also on the bill.The upcoming show will be Ozzy’s first since he announced his retirement from touring due to a series of health issues.During an appearance on TalkTV’s Piers Morgan Uncensored this week, Sharon – who is also Ozzy’s manager – provided an update on her husband’s health. “He’s good,” she told host Piers Morgan (via Blabbermouth).