Who said anyone was on mushrooms? Michael Bublé retracted a shocking confession that he microdosed on the psychedelic drug during a press conference at NHL All-Star weekend in Toronto. Though he later insisted it was a silly joke, Bublé had told reporters he’d taken a small amount of shrooms before stepping onto the ice at Scotiabank Arena for the all-star game’s mock draft on Thursday, February 1. “My buddy told me, this is just a microdose of mushrooms and he was LYING,” the “Feeling Good” singer, who is a celebrity captain for the game, quipped before referencing a Will Ferrell movie. “So, …