BH Buzz: Sia Teases Kanye West-Produced Song “Reaper”

■ Sia teases a song a titled “Reaper” co-written and co-produced by Kanye West off her forthcoming album This Is Acting (out Jan. 7):

■ To promote her new Shades Of Blue series on NBC, Jennifer Lopez stopped by The Ellen DeGeneres Show:

■ 5 Seconds of Summer performed “Hey Everybody” on Conan:

■ Rae Sremmurd – “By Chance” [Prod. By Mike WiLL Made-It & Resource]

■ That time President Obama rapped Drake and Future’s “Jumpman.”

Did we leave anything out?