After months of anticipation, the Lady Gaga and Bruno Mars duet "Die with a Smile" has finally reached the No. 1 spot on the Hot 100 chart. This marks Mars' 35th week at the top of the chart, placing him in the top ten for most weeks at No. 1. The song's success also puts Mars in close competition with Taylor Swift and Michael Jackson for the number of weeks at the summit. Meanwhile, Mariah Carey continues to dominate with her holiday hit "All I Want for Christmas Is You," inching closer to the all-time record for most weeks at No. 1 on the Hot 100.