This is highly up for debate… I asked my husband and neither of us were sure.
It could have been any of the following
1. a song in Pump It Up dance game Like Lexy Greenhorn or Yoo Seung Joon Love Song & 1TYM Hot 뜨거
2. Se7en’s Baby I Like You Like That cuz I was into Taiwanese pop star Will Pan and he had done a cover which brought me to Se7en
3. Valenti by Boa (which was also in Pump It Up) but I may have come to from her Jpop stuff