His popularity gained even more momentum when the likes of Rene Liu and Karen Mok requested Ah Niu to compose songs for them which steadfastly placed him as a firm staple not only in Taiwan, but also in China and Hong Kong.
His recent collaborations are with Singaporean Mandarin pop singer JJ Lin and Hong Kong singer/actor Karen Mok.
Karen people | Karen | Karen Traviss | Karen Blixen | Karen Carpenter | Karen Black | Karen Wilkin | Karen Finley | Karen Poole | Karen O | Karen Mok | Karen Allen | Karen Wynn Fonstad | Karen Valentine | Karen Horney | Karen Gillan | Karen Forkel | Karen Elson | Karen Young | Karen Spencer | Karen O'Connor | Karen National Union | Karen Morley | Karen Matheson | Karen Dalton | Clement Mok | Anna Karen | Karen Young (American singer) | Karen Vick | Karen Tuttle |
When Dubstar began their break from recording in 2000, Hillier wrote various songs for other artists, including Mark Owen, Ben Ofoedu, Landon Pigg, Shane Lynch and Karen Mok Without You (album).