Rochelle Wiseman and Marvin Humes have their own "Jack and Rose" moment at Titanic exhibition

Their hearts will go on: Rochelle Wiseman and Marvin Humes have their own 'Jack and Rose' moment at Titanic exhibition

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UPDATED:

01:03 GMT, 7 April 2012

With The Saturdays on a mini-hiatus while Una Healy is on maternity leave, Rochelle Wiseman has been spending time with her fianc Marvin Humes.

So when his band JLS took their UK tour to Belfast, The Saturdays singer decided to come along for the ride.

And it just so happens their visit coincides with the opening of the new Titanic Belfast exhibition.

Ever get their sinking feeling Rochelle Wiseman and Marvin Humes on the Grand Staircase reproduction at the Titanic Belfast exhibition

Ever get their sinking feeling Rochelle Wiseman and Marvin Humes on the Grand Staircase reproduction at the Titanic Belfast exhibition

Clearly a huge fan of the 2007 blockbuster movie starring Kate Winslet and Leonardo DiCaprio, the engaged couple shared a romantic moment on a reproduction of the Grand Staircase.

Wiseman wrote on Twitter: 'Big thanks to Claire & everyone at the Titanic tour #belfast for staying open late for us! Here's our Rose&Jack pic ;).'

Fans of the James Cameron film will remember Jack Dawson (DiCaprio) and Rose DuWitt Bukater (Winslet) met on the staircase ahead of their dinner together in the First Class dining room.

Rose ended up socially compromising her engagement to Cal Hockley (BIlly Zane) after she ended up partying with Jack in the Third Class reception hall after dinner.

Love story: Kate Winslet as Rose DuWitt Bukater and Leonardo DiCaprio as Jack Dawson on the Grand Staircase in 1997 film Titanic

Love story: Kate Winslet as Rose DuWitt Bukater and Leonardo DiCaprio as Jack Dawson on the Grand Staircase in 1997 film Titanic

The staircase also forms the location of the lovers' post-death reunion in the climax of the film when an elderly Rose finally meets her maker.

The couple are spending Easter in Northern Ireland, where JLS are scheduled to perform on Saturday night.

Wiseman and Humes were lucky to get access to the new exhibition, with tickets already sold out over Easter following its official opening on March 31.

Horror: Extras in the 1997 film on the Grand Staircase as its submerged by water

Horror: Extras in the 1997 film on the Grand Staircase as its submerged by water

The 77m exhibition has opened ahead of the centenary of the Titanic sinking.

Around 100,000 people have already bought tickets for the attraction and it is hoped that it will attract more than 400,000 visitors in its first year.

The centre, whose design is based on the bow of the Titanic, capitalises on its unique location, built right beside the slipway where the liner was floated in 1911.

Tourist attraction: The new Titanic Belfast exhibition in Northern Ireland opened on March 31

Tourist attraction: The new Titanic Belfast exhibition in Northern Ireland opened on March 31