JJ Lam and Ah Sa shoot a music video for JJ's New hit song "Small Dimples". [Photo: TUNGSTAR]

Singaporean singer JJ Lam has invited Hong Kong pop singer Ah Sa or Charlene Choi to be the lead actress in the music video for his new hit song "Small Dimples", which will be released in September.

Besides playing JJ's lover in this video, Ah Sa will also sing with the star in this song.