Kim Boa the lead vocalist of rookie group SPICA was revealed to be Infinite’s former vocal trainer.

Past YouTube video uploaded on December 15, 2010 is drawing attention as it has Sunggyu from Infinite singing a duet with Kim Boa.

It would not be a surprise why Lee Hyori is supporting SPICA seeing how the she has such a great voice.

Watch the video below as Kim Boa sings ‘Lucky’ by Jason Mraz with Infinite Sunggyu.