Those publicity-shy folks at Target world headquarters in downtown Minneapolis didn't send out any press releases to let the world know about their annual managers meeting Tuesday at the half-full Target Center. It seems that Target flexed its musical muscle and landed Lady Antebellum, Nick Jonas & the Administration, Michael Bublé, Norah Jones and Pearl Jam to give cameo performances during the afternoon. (Just think, that jet-setting Eddie Vedder of Pearl Jam was at the Rock and Roll Hall of Fame induction Monday night in New York singing with the Stooges.) Mixed in amongst all the music at the private event were actor Tim Allen and Winter Olympics god Shaun White, who had done his snowboard bit at a similar Target managers meeting in 2006. No word if any of these A-list stars received Target gift cards as loving parting gifts.