Marshmello has a big hit on his hands with "Happier." The heartbreak pop-ballad features U.K. band Bastille and a message of letting go in the hope that someone can find their joy again. It's an emotional moment, even more heightened by the string quartet hauled into the BBC Radio 1 Live Lounge where Marshmello and Bastille recently came together to perform "Happier" on air.
The BBC Live Lounge isn't a one-and-done situation, so the musical friends also gave a fun rendition of Benny Blanco's recent Khalid and Halsey single "Eastside." Bastille singer Dan Smith put some extra flavor on the track by adding the chorus of Nelly's 2000 hit "Ride Wit Me." There's a clip of the cover from BBC's Facebook page below.