The former Arsenal, Chelsea and Tottenham centre-back will link up with the A-League club next month after recently signing a one-year deal and admitted it only took head coach Alistair Edwards half an hour to convince him to become a Glory player.
"I feel good, I feel very excited to be in Australia," Gallas told Fox Sports in Cannes.
"I don't know that country, but I spoke with some people who are from Australia and from Perth and they said I will love it."
Gallas added: "We spoke for maybe 30 minutes and after what he said to me, I decided with my agent to go to Australia.
"For me, it was very important to have a new challenge."
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