Proof is so excited to celebrate its 45th anniversary in 2020!


What started as a response to the underrepresentation of women in Yale a cappella has grown into a decades-old sisterhood with more than 250 alumnae.

Join us the weekend of February 6th-9th for sisterhood, song, and some jazz that is both sweet and hot!

Don't hesitate to reach out to our alumnae coordinator, Amaris Hester, with any questions, comments, songs, pictures, or stories from your time in Proof!

We’d love to hear from you!


Alumnae Coordinator

email me at:

...all female jazz and swing a cappella since 1975...

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