LONDON: Katy Perry is 'inspired' by Pink. The 'I Kissed A Girl' singer is such a fan of the 'So What' vocalist she went to see her perform in Australia on Thursday, and swiftly took to her Twitter page to praise her. Katy wrote: 'out 2 c the P!NK show in Melbourne! She rules AUS! Can't wait, I KNOW she won't sing that song,'There U Go' but I chuckle and wish! 'okay, THAT was AMAZING! YOU MUST see the show when it comes to the STATES! P!NK @ her prime... so happy I went, inspired. Good morning USA (sic)!' Katy - who is known for her outrageous stage outfits - admitted she was jealous of 29-year-old Pink's clothes. The 24-year-old singer wrote: 'she's really great... Shows so many different dimensions and is still personable, relatable, f****** RIPPED and wears HIGH A*S HEELS. HOW? FAN (sic)!' Pink is not the only music star Katy is in awe of. She has previously admitted she was a huge fan of Queen frontman Freddie Mercury and No Doubt's Gwen Stefani. She said: 'When I grow up I want to be just like Gwen Stefani. It's not a race it's a marathon. I keep telling myself this.'