Playstation 2 PS2 Guitar Wireless Sunburst Controller Guitar Hero World Tour | eBay
Finally found a PS2 Guitar Hero controller : r/gamecollecting
Amazon.com: PS2 Guitar Hero World Tour Guitar Kit : Video Games
Amazon.com: Mcbazel Playstation 2 Controller to USB Adapter for PC or Playstation 3 Converter Cable for Sony DualShock PS2 PS3 Controllers (NOT Compatible with Dancing Mat Guitar Hero) : Video Games