Harry Styles rang in his 21st birthday with a party in Los Angeles that included Victoria's Secret model Nadine Leopold and former girlfriends Kendall Jenner and Cara Delevingne, reports HollywoodLife.com.

The only ex-girlfriend of Styles' not present was Taylor Swift.

The One Direction singer spared no expense at his birthday bash Saturday, reportedly spending more than $300,000 on himself and his guests at the West Hollywood hotspot Lulu's. There was reportedly karaoke (which Hazza and One Direction bandmate Liam Payne are rumored to have enjoyed), photo-booths and birthday cakes featuring pictures of a young Styles.

When he blew out the birthday cake candles, he FaceTimed his mom, according to People magazine.

While it may seem rather risky for Styles to have former girlfriends at his party, there was reportedly no drama between the women. Perhaps there are no unresolved romantic feelings since, as Inquisitr reports, Styles is "totally besotted" with Leopold, 21.

"Harry has spent virtually all his free time in Los Angeles with Nadine," a source told The Daily Mail. "They're infatuated with each other and can't stand being apart. There's nobody else he'd rather be with on his birthday."

There were plenty of A-list celebrities that helped the "Story Of My Life" singer celebrate his birthday: David Beckham, Courteney Cox, Cindy Crawford, Gigi Hadid, Rashida Jones, Samantha Ronson, Kelly Osbourne, Adele and more famous faces, including on-again couple Jennifer Lawrence and Chris Martin.

Delevingne posted several pictures to Instagram from the party of her with gal pals Jenner, Ronson, Jones and Osbourne. Hadid also posted an all-girl shot from the soirée.

One Directon members Zayn Malik and Naill Horan were absent; Horan was in Australia to take in the Australian Open tennis.

There have been rumors of a One Direction break up since Payne and Styles are exploring other projects, but fans can rest assured the boy band is under contract with Simon Cowell's SyCo until the end of 2015. It would cost the band members tens of millions of dollars if they breached the contract.

One Direction is set to kick off its latest world tour later this week.

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