Harry Styles and former fling Kendall Jenner both attended this year's British Fashion Awards on Monday at the United Kingdom's London Coliseum, where they were spotted flirting with each other.

The One Direction heartthrob certainly looked dapper in a black Lanvin suit with red pinstripes and a simple, solid black shirt underneath, Us Weekly reports. He also wore a pair of matching black dress shoes and kept his signature messy-looking hair.

While making his way downstairs, Styles came face-to-face with the reality star-turned-model, who was climbing the stairs towards him. She looked flawless in a white strapless jumpsuit with black stripe down the sides by Emilio Pucci, completing her chic ensemble with a pair of sheer black pumps and a bright red lipstick accent.

According to Us Weekly, the "Steal My Girl" crooner "evidently rekindled an interest in brunette Jenner," as the night went on.

"He had his eyes all over her," a source revealed.

When the ex-couple bumped into one another, the "Keeping Up With the Kardashians" star was hand-in-hand with gal pal Cara Delevingne, who also dated the One Direction member previously. Supermodel Delevingne flaunted her slim figure and lean legs in a floor-length sparkly gold Burberry gown with black panel sides and a very high slit up the front. She sported smoky eye makeup and a pair of black sandals.

According to E! News, a private party hosted by Kate Moss and Naomi Campbellwas held after the event at Hotel Café Royal in the Grill Room.

An eyewitness claimed that Jenner and Delevingne were "the life of the party," showing off their dance moves to techno music, and "stayed close to each other the whole night."

Styles caught up with the two beauties and especially "flirted with Kendall a bunch." He also got up on the dance floor and "was the ladies man all night."

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