{babes} Katie Holmes Channels Jackie Kennedy in New Role

The baby bump Katie Holmes showed off on Monday was not in fact a sibling for Suri, but part of a costume for her role as Jacqueline Bouvier Kennedy in the History Channel's upcoming miniseries, The Kennedys. Coiffed in the famously chic first lady's signature Camelot-era bouffant, the star was spotted on the Ontario, Canada set in a robin's egg-blue shift, paired with pearls, a rhinestone circle pin–and a prosthetic belly–evoking Jackie's classic polished look, even while in maternity clothes. Holmes, a trendsetter in her own right as well as a burgeoning designer, will no doubt feel right at home playing dress up as one of America's seminal fashion plates. Tell us: Are you excited to see Katie as Jackie O?