Kesha delivered a joyful and triumphant performance of her 2009 smash hit, "Tik Tok," at the 2019 American Music Awards Sunday (Nov. 24).

Prior to the "Tik Tok" performance, the pop star was joined by bounce rapper Big Freedia to perform "Raising Hell," their collaboration from Kesha's new album High Road, out Jan. 15.

"This is our Sunday service," Kesha said to the crowd before church-themed performance as a likely nod at Kanye West's "Sunday Service" gatherings.

Her "Tik Tok" performance, however, truly stood out due to Kesha's ongoing legal issues with its producer, Dr. Luke, who Kesha has claimed was abusive towards her during their time working together. Dr. Luke has denied all claims.

Reactions from the audience in attendance were euphoric — particularly country singer Maren Morris, who sang along excitedly, and SNL album and 2019 AMAs presenter Taran Killam, who looked positively shocked during the performance.

Watch the performance, below:

See reactions from viewers on Twitter:

2019 AMAs Red Carpet