Kanye West’s Sunday Service continues to draw some of the biggest names in music. In a series of clips shared by Kim Kardashian-West from this weekend, pop superstar Sia made an appearance at the event, and led worship with the Sunday Service gospel choir.

In the clip below, she sings, “Lift up your voices now, sing praises to our God for all the things that He has done” to the music of  her song “Elastic Heart.”

As Kardashian-West explained on Instagram, “The rain forced us inside but it was magical. No mics, no band, no speakers but it was perfect. Not a dry eye in the room today.” 

The performance was followed by a spirited chorus of “He’s Alive”:

The service even featured some preaching: “There is only one name that can bring the purpose you desire; His name is Jesus.”

You can see the clip below: