Selena Gomez is getting to the heart of the matter…

The 22-year-old half-Mexican American has released a new single, “The Heart Wants What It Wants,” along with its official video.

Gomez’s new track is one of the new singles that forms part of her first best-of collection, For You, due November 24.

The set includes prior singles and remixes of previously-released songs, along with the new “The Heart Wants What It Wants,” which enters Billboard Hot 100 chart as the Hot Shot Debut at No. 25.

The song is being credited with totally helping change Gomez’s perspective on her roller coaster relationship with her ex Justin Bieber.

“The song was very therapeutic for her,” a source tells HollywoodLife.com. “It let her share her feelings and let it all out. It didn’t really make her miss Justin though, it made her realize that she should get over him.”

“The Heart Wants What It Wants” begins on Digital Songs chart at No. 6 with 102,000 downloads sold, according to Nielsen SoundScan, and Streaming Songs at No. 37 with 3.1 million streams.