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Lauren Conrad's 40th Birthday: A Nostalgic High School Prom

2/15/2026

Summary

Story summary

Lauren Conrad celebrated her 40th birthday with a high school–themed party dubbed "Senior, Senior Prom."
The event featured her husband, musician William Tell, who performed on stage.
Conrad shared Instagram photos expressing joy at celebrating with close friends born around the same time.
The celebration drew shout-outs from fellow Laguna Beach cast members, though attendance was unclear.
The party mirrored Laguna Beach's 2004 prom, capturing a nostalgic vibe.

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Story summary

Lauren Conrad celebrated her 40th birthday with a high school–themed party dubbed "Senior, Senior Prom."
The event featured her husband, musician William Tell, who performed on stage.
Conrad shared Instagram photos expressing joy at celebrating with close friends born around the same time.
The celebration drew shout-outs from fellow Laguna Beach cast members, though attendance was unclear.
The party mirrored Laguna Beach's 2004 prom, capturing a nostalgic vibe.