ビビアン・スー
The Secret to Happiness Is Love ( x4) is a studio album by Taiwanese artist Vivian Hsu. It was released September 28, 2003, by Avex Taiwan. The original title "Wǒ Ài Nǐ" means "I Love You". There were three versions of this album produced: a limited edition with artbook, a preorder edition with artbook and bonus single CD, and a regular edition without the artbook, but with a VCD containing music videos.