On today's Who? Weekly: 25 Things You Don't Know About Keri Hilson — and trust us when we say that you have absolutely NO idea. Mike Posner's pulling a "Mandy Moore" (climbing Mt Everest), Greer Grammer's asking her dad for a walk-on role, Aidan Turner (?) and Caitlin FitzGerald (?) tied the knot, Brooks Koepka (?) and Jena Sims (?) WILL tie the knot and Bethenny Frankel's with a guy named Paul. Plus, B.J. Novak launches a confusing food concept, Tara Reid attends ScotWeek, Diddy sends his hologram of himself to his son Christian's birthday bash and Yung Joc gets a fake beard (NOT APRIL FOOL'S).

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