Selena Gomez surprised concert goers in Los Angeles last Thursday after appearing unexpectedly during the concert of the praise and worship band Hillsong Young & Free. The pop star performed one of her singles which she previously confirmed is about her special relationship with God.

Gomez's surprise appearance occurred on Feb. 25 during the album release of the Hillsong Church band held at LA'S Belasco Theater, Billboard reported. Prior to the concert, it was not revealed that the 23-year-old artist will be performing at the event which is why her guest appearance took members of the audience by surprise.

Before performing, Gomez addressed the crowd to say that attending the great was a special opportunity for her.

"Tonight is more than a concert, it's more than Hillsong, it's more than me coming on stage and singing a song for you," she said during the event according to News Busters. "It's about a relationship that is greater than anything, guaranteed."

"I wrote this song about the one thing that holds it all together for me even when I can't bear to do it myself," she added.

Gomez then sang the song "Nobody" from her 2015 album "Revival" together with the Hillsong Young & Free. As previously stated by Gomez on Twitter, the song is about her relationship with God. Based on the lyrics, the single talks about how no other type of love can compare to the one from Him.

As for Hillsong Young & Free, their new album, titled "Youth Revival" is now available and can be purchased through the band's official website for AUD $19.99, or around $14.35. The album is also available on iTunes and the first single from it, "Where You Are," is on Spotify.

"Youth Revival" is the second album from the band after "We Are Young and Free." According to the band, this sophomore album is different from the first one because its songs are timely and were written for the current generation.