Jeon So Mi drops 'DUMB DUMB' choreography MV

Jeon So Mi drops cinematic 'Dumb Dumb' MV teaser

'Idol Room' reveals unreleased no-arms version of Red Velvet's 'Dumb Dumb'

Red Velvet's MV for 'Dumb Dumb' reaches 100 million views!

Jang Jae In, Giant Pink, and PERC%NT drop MV for their cover of Red Velvet's 'Dumb Dumb'

Jang Jae In, Giant Pink, and PERC%NT are on display in MV teaser for Red Velvet's 'Dumb Dumb'

Music cuts off in middle of 'Dumb Dumb' performance, Red Velvet carry on like professionals

Red Velvet initially thought the jeans they wore for 'Dumb Dumb' were given by mistake?

Shindong turns into the 6th member of Red Velvet with an amazing performance of 'Dumb Dumb'

iKON's 'Dumb & Dumber' certified Gold by the RIAJ!

Red Velvet is next on 'Weekly Idol' to perform at 2 times the speed

Red Velvet's 'Dumb Dumb' MV ranks on 'Rolling Stone's 10 Best Music Videos of 2015!'