Katie Holmes and Tom Cruise (or TomKat as they’re collective known) made a rare public appearance last night at the LA premiere of Katie’s new tv series ‘The Kennedys.’ Katie who plays Jackie Onassis in the adaptation perhaps appears to have learnt a few style tips from her famously fashionable on-screen persona. The usually dowdy (I won’t mince my words) dressing Katie went for a pretty blue summer dress from the spring collection by Ralph Lauren; a pretty palette for Spring combined with a natural hair and makeup look makes for a refreshing look.