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See Kate Middleton's royal tour outfits in Northern Ireland

The Duchess of Cambridge looked elegant at a party in Northern Ireland.
Kate Middleton wears red coat in Northern Ireland
The Duchess of Cambridge wore a red coat similar to one worn by Jackie Kennedy in 1960. Getty Images
/ Source: TODAY

Pretty in green!

Catherine, Duchess of Cambridge, turned heads Wednesday in a pleated, mint green Missoni dress when she and Prince William attended a party at Belfast's Empire Music Hall, part of the couple's surprise two-day trip to Northern Ireland.

Catherine, Duchess of Cambridge, accompanied Prince William to a party at Belfast's Empire Music Hall.Jeff J Mitchell / Getty Images

The shimmery dress featured a deep-V neckline and sheer sleeves. The former Kate Middleton paired the dress with a light beige clutch and heels, and wore her hair down in loose waves.

The duchess pulls a pint of beer at the party as Prince William, Duke of Cambridge, looks on.POOL / Reuters

The duchess showed how versatile her elegant evening look was when she hopped behind the bar to demonstrate her skills at pulling a pint of beer, grinning ear-to-ear as her husband and others watched.

The ensemble was the second eye-catching look the duchess wore Wednesday.

The classic coat was similar to one worn by Jackie Kennedy.Getty Images

Earlier in the day, she charmed in a retro-looking red coat that recalled the style of another fashion legend, Jacqueline Kennedy Onassis.

She paired the coat with black tights and ankle boots.Getty Images

The double-breasted, crimson coat, which the duchess wore on a visit to the Irish Football Association, is similar to one worn by the late first lady in early 1960, as John F. Kennedy announced his plans to seek the Democratic presidential nomination.

Late first lady Jacqueline Kennedy Onassis wore a memorable ruby coat as John F. Kennedy announced that he would seek the 1960 presidential nomination.Bettmann Archive

As it happens, the duchess’s coat was designed by Carolina Herrera, who created looks for Jackie Kennedy in her later years.

The duchess paired the coat with opaque black tights, laced ankle boots and her signature, flawless blowout.

Her coat was as cheerful as the bright flowers she accepted from well-wishers.Getty Images

It’s not the first time the duchess has been seen out and about in this chic coat (after all, she loves a royal style repeat).

She wore it to a rugby match in Paris in 2017, accessorizing with elegant, black gloves — just as Kennedy did when she wore the similar coat in 1960.

She previously wore the coat to a rugby game in Paris in 2017. Getty Images

The duchess also wore the coat during a visit to Canada in 2016, pairing it with neutral tights and classic pumps.

She also wore the coat during a visit to Canada in 2016. WireImage

The duchess tends to favor classic looks with traditional and even retro silhouettes, so it’s no surprise that she just channeled one of America’s most beloved 20th-century style icons.

We'd like to think Jackie O would have approved of both gorgeous looks!