Flo Rida's "Whistle" takes over atop the Billboard Hot 100, pushing Carly Rae Jepsen's "Call Me Maybe" off the summit after nine weeks. Ellie Goulding's "Lights," meanwhile, crowns the Radio Songs chart, fun. becomes the first rock band in more than five years to send its first two Hot 100 hits into the top 10 and Mumford & Sons and Taylor Swift each debut with lead singles from new albums.
![Where Have You Been [Vice Edit] [Edit]](http://www.billboard.com/files/styles/thumbnail_140/public/songs/w/165815550.jpg)
