11. Rihanna, "Needed Me"
Rihanna's lifetime total of fucks given remains zero – in fact, "Needed Me" might push it down into negative numbers. "Trying to fix your inner issues with a bad bitch" – ouch. "Needed Me" is the coldest of cold, the hardest of hard, the most fabulously merciless Rihanna has ever sounded on wax.