Usher made a surprise appearance during the encore of Afghan Whigs' show at Brooklyn's Music Hall of Williamsburg Sunday night. This may seem like an unusual collaboration between a veteran indie rock band and a crossover R&B superstar, but the two acts have actually performed together before at the 2013 Fader FORT. Watch an Instagram video of their recent performance here.
Cross-genre collaborations are becoming increasingly common. In 2013, the Yours Truly and Adidas "Songs From Scratch" series brought together an independent producer Shlohmo and the R&B singer Jeremih for "Bo Peep (Do Me Right);" the two artists ended up putting out an entire EP together. The same series also connected Tinashe with Jacques Green.