The Elton John Oscars Party had no shortage of stars, per usual.

Lifestyle blogger, Brittny Gastineau and Mariah Carey were two celebs that were seen hanging out for most of the bash.

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Having a moment talking Our Aspen laughs @mariahcarey

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Guests wondered what the two starlets were taking about and an insider filled us in. "Mariah and Brittny are long time friends, and used to hang out frequently in Aspen," said the source. They also share something else in common, both stars used to date latin superstar, Luis Miguel. But that is ancient history now, as the singer is newly engaged.

The source added, "Mariah and Brittny were reminiscing over fond memories, and Gastineau congratulated the singer on her recent engagement to billionaire James Packer."

RELATED: Mariah Carey Reveals Wedding Plans With Billionaire Fiancé James Packer

Nick Cannon's ex was seen flashing her huge engagement ring during the night out, and the brunette beauty was later seen leaving the party early with her mother, Lisa Gastineau.