MTV/vh1

VIDDY THIS: Katy Perry's "Roar" is among the videos added at MTV this week; we don't have it to share with you yet, but you can see a tantalizing teaser for the full-length clip here. However, feast your eyes on the other adds (including the hit from breakout EDM star Avicii, seen above).

MTV
Avicii f/Aloe Blacc, “Wake Me Up” (PRMD/Island/IDJ)
Dillion Francis f/Simon Lord, “Messages” (Mad Decent)
Katy Perry, “Roar” (Capitol)
Macklemore & Ryan Lewis f/Schoolboy Q & Hollis, “White Walls” (Macklemore/ADA/WB)
Robin Thicke f/2 Chainz & Kendrick Lamar, “Give It 2 U (Remix)” (Star Trak/Interscope)

VH1
Imagine Dragons. "Demons" (Kidina Korner/Interscope)

Oh, and contrary to popular belief, UMPG's dispensary does not sell a strain called Imagine Dragons. Although a toke or two of Promenade Kush could make you imagine all kinds of things. (9/4a)