Hong Kong singer Andy Lau performs at his "Wonderful World Sydney 2008" concert at Sydney Entertainment Center on October 5, 2008. [Photo: CFP]

As the whole country takes pride in China's successful spacewalk mission, Hong Kong singer Andy Lau joined the celebration by appearing onstage dressed as an astronaut.

The 47-year-old pop sensation opened another part of his "Wonderful World" tour at Sydney Entertainment Center last weekend.

On Saturday and Sunday, Lau gave two concerts with "Andox" and "Heizai," the two toys he designed. He performed a 30-song set each day, ranging from his 90s hits to the tracks from his latest album, "Wonderful World."

His next stops will be Taipei (November 11 and 12) and Singapore (December 12 and 13), according to an announcement on the star's official Web site.

The veteran and heartthrob of millions has performed in 15 Chinese mainland cities since September 2007, and ended last year's tour with a series of Christmas concerts in Hong Kong.