LOS ANGELES (CBSLA.com) — Dressed up as Olaf, Taylor Swift performed “Let It Go” with Idina Menzel while on her 1989 Tour.

“Frozen totally happened tonight,” Swift wrote on Instagram of the Saturday performance in Florida. “And 55,000 people sang ‘Let it Go’ so loudly, it nearly took my breath away. Good times, @idinamenzel.”

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Menzel was dressed up as Elsa.

https://instagram.com/p/9iWuc-jvKZ/?taken-by=taylorswift

Swift also performed “Here” with Alessia Cara, writing via Twitter: “I honestly couldn’t be more impressed by @alessiacara. 55,000 people and she was absolutely fearless.”

https://instagram.com/p/9h78ROjvBS/?taken-by=taylorswift

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To watch a portion of the performances, click below: