Automatically clicks the PLAY ON DEVICE button when you want to play a song on Last.fm and it asks you to which device you want to play the song in when you have your Spotify connected to it. I did this because I tend to open multiple tabs when looking for new music and I find it very annoying that you need to click it every time even when you only have one device on the list. There's no reason to keep asking if I only have one device.