For 10 points, name this recording artist of the songs Thinking of You, Waking Up in Vegas, Hot N Cold, and I Kissed a Girl.
One song by this artist claims its addressee is "like an Indian Summer in the middle of winter" and ends by declaring "in your eyes I'd like to stay." One music video by this singer shows Penn and Teller getting kicked out of a hotel room before the singer's fortune changes. This singer also wrote songs with the lyrics "You change your mind(*) like a girl changes clothes" and one mentioning "The taste of her cherry chapstick." For 10 points, name this recording artist of the songs Thinking of You, Waking Up in Vegas, Hot N Cold, and I Kissed a Girl.
One song by this artist claims its addressee is "like an Indian Summer in the middle of winter" and ends by declaring "in your eyes I'd like to stay.
Katy {Perry} or Katheryn Elizabeth {Hudson}