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The singer re-emerged wearing a sparkly black-and-blue outfit complete with roller skates as he introduced will.i.am for their collaboration OMG - a song title which reflected the crowd's reaction.

“You don’t have to be black-and-blue to be in a domestic violence situation,” she said.

“And that’s the reason that he’s gone/And left you black-and-blue.”

Back at T-Mobile Park on Monday afternoon, Moore lifted up his shirt to reveal the oversized black-and-blue welt under his left shoulder blade on Monday afternoon.

Green-winged Inca jays, with yellow bellies and black-and-blue faces, fluttered and squawked in nearby branches, and a dazzling array of hummingbirds purred and thumped, jostling for space at assorted feeders.