Kiefer Sutherland, 51, is joined by stunning girlfriend Cindy Vela, 39, as they leave their hotel in Dublin

They previously kept their relationship out of the limelight.

But Kiefer Sutherland, 51, and his girlfriend Cindy Vela, 39 were spotted leaving their hotel on Monday, following his performance at The Academy in Dublin this weekend.

The 24 actor opted for a white blazer and fitted black jeans for the outing, and wore a large white boater hat.

Kiefer Sutherland, 51, and his girlfriend Cindy Vela, 39 were spotted leaving their hotel on Monday, following his performance at The Academy in Dublin

Kiefer Sutherland, 51, and his girlfriend Cindy Vela, 39 were spotted leaving their hotel on Monday, following his performance at The Academy in Dublin

Kiefer added a pair of aviator sunglasses to protect his eyes from the bright sunshine, and wore leather brogues.

Meanwhile Cindy wore blue skinny jeans and a navy blazer as she joined her beau, looking chic with her sleek locks pulled into a high ponytail.

The actress was also seen showing off her long slender pins in a pair of shorts and flip flops as she walked Ireland's cobbled streets.

She wore an off-the-shoulder bardot top and accessorised with patterned silk scarf, artfully wrapped around her neck.

Soaking up the sun: Kiefer added a pair of aviator sunglasses to protect his eyes from the bright sunshine, and wore leather brogues

Soaking up the sun: Kiefer added a pair of aviator sunglasses to protect his eyes from the bright sunshine, and wore leather brogues

Last year, the New York Post claimed the actor had been dating Cindy 'under the radar' for a long time with the pair moving in together.

The newspaper's Page Six column reported at the time the It's Gawd star joined Kiefer and his band on their European tour.

MailOnline reached out to Kiefer Sutherland's representatives at the time.

Prior to Cindy, Kiefer had proved to be unlucky in love after his engagement to Oscar-winning Julia Roberts, 49, came to an end.

The London born star began dating the Pretty Woman star in 1990 after meeting on the set of Flatliners and got engaged in August of the same year.

Svelte: The actress was also seen showing off her long slender pins in a pair of shorts and flip flops as she walked Ireland's cobbled streets

Svelte: The actress was also seen showing off her long slender pins in a pair of shorts and flip flops as she walked Ireland's cobbled streets

Kiefer praised her for having the 'courage' to call off their wedding in 1991 following their whirlwind romance.

'I think she was being realistic for herself. I think that's much better...' he told Jess Cagle last year. 'This wedding that was supposed to be something between the two of us became something so big.

'Then, in the middle of that, I think she had the courage... it wasn't what she wanted to do, in the end I think it took a lot of courage, even amongst all of that other stuff, to be able to say, "I can't do this."'

Despite the heartbreak, Kiefer went on to marry Elizabeth Winn in 1996 but he filed for divorce eight years later in 2004.

He also has daughter Sarah from his first marriage to Camelia Kath, who he was wed to from 1987 until 1990.

Kiefer also dated Siobhan Bonnouvrier for three years during his stint on cult classic 24 before they split in 2011.

Stylish: She wore an off-the-shoulder bardot top and accessorised with patterned silk scarf, artfully wrapped around her neck

Stylish: She wore an off-the-shoulder bardot top and accessorised with patterned silk scarf, artfully wrapped around her neck

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Kiefer Sutherland, 51, is joined by stunning girlfriend Cindy Vela, 39, in Dublin

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