HIGH4:20 show their moves in 'HookGa' choreography MV

HIGH4:20 reach for the sky with their subunit song 'HookGa' feat Hwa Sa

HIGH4:20 reveal the MAMAMOO member featured in their debut song 'HookGA'

Sub-unit HIGH4:20 drop another MV teaser for 'HookGA' featuring someone from MAMAMOO!

New sub-unit HIGH4:20 tease for debut with featured artist