missjadeyy
@brianfantana!! have you ever seen her live???? i saw her at the summertime ball(Capital Radio)she was brillant!!!!!

Yasmin evans richards
she is so amazing! i love katy perry

Lynds
Katy was amazing!! at least she knew she was in scotland, unlike gaga!! what an entertaining show. loved her!

Nicky McEvoy
Katy Perry was brill. Really enjoyed her!!

Nicky McEvoy
Katy Perry was brill. Really enjoyed her!!

Nikki
Omg I actually LOVE her she Is amazin!!!!!!! She was the only reasonni got a ticket for titp!Barrowlands here I come cant wait!!Xxx

emma d
katy was amazing, loving the gingers lol

PNess
What a performance!

Sunny-Jo
I Love Katy Perry; She's Awesome :), I Want Her To Come To Sheffield So I Can See Her Live x

rebecca
best part of my weekend i got kissed by katy perry :D

dave
even wore tartan for the occasion!ilh x

shannan
she is so amazing!

Bruiservp
How come not available in U.S.A.

n
sounds a bit like alanis morisette

matt
i just realised i want to marry her

adam
outstanding performance!! just as gorgeous in person as she is in her videos!

MB
Amazing :D

bob
6ft tall, slim darkhair and sizeable assets- seriously though she didnt take herself too seriously!GOOD SHOW

Kirst
Katy Perry was great, best of the weekend along with Lady Gaga and The Killers! Hope she is at T for 2010!

Kim
U can see me :D was amazinnn one of me highlights of the weekend :) x

yon
the best new artist in years

chels
i normally quite like katy perry, but this isnt the best. (N) better luck next time ey ?

Blackins
she proved she not another women singer with no voice aka lady gaga

Alberto
How sexy is Katy

Tom
What a set! Love katy perry

Scott G
Loved her cover of dont stop me now.

Mathew Penman
Katy Perry Was Amazing!! 1 of my favourite acts of the weekend!

Keith
Airdrie Top Katy-P Marry Me !Purple Mohawk !All Me

Ellen
Wow ! She really got the crowd going ! Love you Katy !

Kelly
Amazing! :)Loved her dress!!Really want to go see her now :D:D

Julio
She sounded nervous to start, got into it though. Would have definately seen her along with NIN/JA later on.

AMY DEE ILUVKATY
OMG SHE WAZ AWESOME BTW LADY GAGA WAS GR8 ASWELL.ILUVHER

EssJay
Simply stunning...what a star!!!

Annie B
I thought she was brill. A totally entertainer. Beautiful and talented.

iLoveKPx
Love You Katy :P

steven
I ACTUALLY LOVE KATY PERRY! i really wanna meet u!

brianfantana
No girls kissing during I kissed a girl! very disappointing, almost as disappointing as katy perry's live performance! She really can't sing!

stephy
she was awesome definatly better than lady gaga.

ashleigh
she was so entertaining! the primark glasses were cool in hot n' cold :D

michelle
i loved i love katy perry i think shes amazing

Freya Cummings
i love katy perry i am so annoyed that i could not see her at t in the park she is amazing singer!:)

Clare Monaghan
She rocked the stage! Loving the tartan outfit!Rock on Katy!

courtney
katy perry rules and lady gaga was rubbish this year she looked like a snob

Trevor
Someone had a fail on the TITP Line up saying "Kate Perry"