The popular 'Apple Girl' Kim Yeo Hee, uploaded a video of her in the studio covering Utada Hikaru's "First Love", and in the original Japanese language by the way.
Kim Yeo Hee became known for covering popular songs while playing them on her Apple iPhones (four to be exact). She later signed a record deal and has released an EP. A very gifted vocalist and keyboardist so I recommend you check her out and support her music. Watch the video of Kim Yeo Hee's "First Love" cover below: