I seriously don't know why she wasn't the main singer. Her voice is way more distinctive than Taeyeon's. It took me a few songs to notice Taeyeon's voice TBH.
SISTAR has it on lock since y'all say Inki is mostly digital sales.
They may have won M Countdown! this week we'll find out May 2nd or 3rd.
Inkigayo gets the digital sales 1 week later than the other charts, wich means that 4minute have a nice lead over SISTAR this time, it's up to their fans now!