Bruno Mars’ 'Uptown Funk' has finally been dethroned from Hot 100...

Only two songs have enjoyed top spot this year... 
Wiz Khalifa knocks Mark Ronson and Bruno Mars’ off the top spot with 'See You Again' from the 'Furious 7' soundtrack. Bruno's 14-week reign with 'Uptown Funk' remains tied for the second-longest number one in the history of the Billboard Hot 100.
However, Mariah Carey fans need not worry as her 16-week record remains secure for now. That is, if Bruno doesn't reclaim the number one spot again.