Los Angeles, California - Hailey Bieber had a "mom's night out" at the annual Vanity Fair Oscars Party without her husband Justin Bieber. But does this have anything to do with the split rumors?

Trouble in paradise? Not so fast!

After celebrating the Biebs' birthday this weekend, the Rhode founder was spotted attending the yearly Oscars after party by herself.

It's possible that Justin was just tuckered out from a few days of partying.

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Hailey pulled up to the star-studded bash in a strapless black Saint Laurent gown adorned with two oversized bows and a sheer bottom.

The beauty mogul paired the dress with diamond-studded statement earrings while her hair was styled in glamorous loose waves.

Despite arriving at the party alone, Hailey definitely was one less lonely girl as she posed with Zöe Kravitz and Madison Beer, not to mention her bestie Kendall Jenner who was also in attendance.

The Baldwin member kicked off her fun-filled weekend by commemorating her hubby's birthday, as the pop star turned 31 years old on March 1.

The Peaches singer shared footage from his bday fun via Instagram which included a rare snap of his and Hailey's son Jack Blues, plus images of the famous parents.

The Biebers further dispelled the latest divorce chatter with PDA when Hailey presented Justin with his birthday cake!