On the off chance you're not all Kurt Cobain'd out already, here's a video of St. Vincent covering Nirvana.
St. Vincent played Nirvana's 'Lithium' at Chicago's Riviera to mark the 20th anniversary of Kurt Cobain's death. Of course, everybody else was paying homage to Cobain over the weekend, too, but this is St. Vincent, so it's probably worth four and a half minutes of your time, right?