A lot xD
I currently have 370 songs; about 22 hours of music on Spotify
I just added some Nick Jonas, Jonas Blue, Fitz and the Tantrums, Yellow Claw, Major Lazer, etc...

I never take anything off, and I've been working on it for like a year, so it's almost stupidly diverse xD

There's everything from country to rock to electro swing to metal (courtesy of my bf, who's a metalhead) xD
I love it

[s]Right now it's playing "I Would Walk 500 Miles"[/s]