Taiwanese pop star A-mei put on a free performance last Sunday in support of a bill that seeks to legalize gay marriage in Taiwan.

According to state-run Central News Agency (CNA), the free outdoor concert held in Taipei's Creative Park attracted close to 20,000 fans.

“I heard that someone brought their parents here,” the 41-year-old singer told the crowd. “That's right. We are here today to let everyone, including our parents, know about our love.”

A-mei, the first entertainer to sign a petition in support of the marriage bill, paid the concert's estimated $100,000 tab. The concert was quickly organized in only 11 days.

The marriage bill was introduced in September by the Taiwan Alliance to Promote Civil Partnership Rights (TAPCPR) and cleared the first reading in the Legislative Yuan in October.