Conversation so far:
When did Helen Reddy make a brief comeback?
In 2012, Reddy decided to return to performing after being buoyed by the warm reception she received when she sang at her sister's 80th birthday party.
How many shows did Helen Reddy do after her comeback?
On 12 July 2012, Reddy returned to the musical stage at Croce's Jazz Bar and for a benefit concert for the arts at St. Genevieve High School
Did Helen Reddy do any other shows after St. Genevieve High School?
Reddy performed at the Paramount nightclub at The Crown & Anchor in Provincetown on 13 October 2013.
Did Helen Reddy perform anywhere after the Paramount nightclub?
She performed two nights at Catalina Supper Club, Los Angeles in November 2014, shortly after her 73rd birthday.

Question: What did she sing at the Womens March?
Self-contained rewrite: What did Helen Reddy sing at the Womens March?