Okay well I just listened to Sam Smith's album and put "Leave Your Lover" on repeat about 25 times, and then realized my last.fm was off...

But it's not last.fm's fault, I put it on "Disable scrobbling" for a moment because I was looking for songs to put in a playlist and I was sampling a few but didn't want them to scrobble. Ugh, poor Sammy.
edit: Oh and I listened to James Bay before this, so even more songs were affected

edit 2: I looked to see if I could bring the scrobbles back somehow and someone mentioned manual scrobbling, I guess I can just do that since I remember what songs I played.