About the first track from Plastic Hearts, which is clearly about her ex, Hemsworth, Cyrus told Stern, "[And with] 'WTF Do I Know,' it's not that it's how I feel every second of the day, it's how I felt for a moment." With lyrics with such a strong point of view, like, "You want an apology? Not from me / I had to leave you in your own misery" one has to wonder if she felt this way just sometimes. 

The former Hannah Montana star goes on to croon, "So tell me, baby, am I wrong that I moved on? / And I, and I don't even miss you / Thought that it'd be you until I die / But I let go." The star clarified to Stern about the lyrics, "Time kind of heals all, but that was at a time where I felt really strong. And then some days I don't."

Twitter certainly feels empowered by the track, with one fan tweeting, "Me: *crying 'cause of my broken heart* Me after listening to 'WTF do I know:' I'm a bad b***h. I'm gonna cut and dye my hair, change my whole wardrobe and personality." Another fan joked, "album makes me want to go divorce my husband so I can sing it at him."