Watch: fun. debuts new song, “Harsh Lights,” on Jimmy Fallon

On Wednesday night, fun. debuted the new song, "Harsh Lights," during the special Orlando edition of "The Tonight Show Starring Jimmy Fallon." Armed with a gold microphone and a delicious Grease-style, T-Birds silk jacket, Nate Ruess wooed the geeky crowd with hipster dance moves, leather loafers and lyrics filled with “whoas” and dreams of “slipping into midnight.” “The Tonight Show” is in Orlando this week promoting the nerd’s dream/expansion of Diagon Alley in the Harry Potter theme park.

Grammys 2013 photos: Rihanna, fun., the Black Keys and more

Sunday night, the Grammys 2013 included performances by Rihanna, fun., the Black Keys, Frank Ocean and more. fun., Mumford & Sons and Gotye took home some of the biggest awards of the night, while Denver's the Lumineers didn't win either of the two categories they were nominated in.