Mark Zuckerberg has been leaning into his own version of mob chic lately. The Meta founder has been wearing chain necklaces like a rapper straight out of the 2000s.@zuck via Instagram; Cooper Neill/Zuffa LLC via Getty ImagesMark Zuckerberg must really love his chain necklaces. The Meta chief wore a rapper-style outfit to a Saturday UFC event.He then wore a similar outfit on Thursday when announcing Meta's new AI products.Mark Zuckerberg isn't done channeling his inner Eminem just yet.Zuckerberg wore a navy blue t-shirt and chain necklace while announcing his company's latest AI products on Thursday."Big AI news today," Zuckerberg said in a video he posted on Instagram.