John Mayer And Katy Perry Celebrate Mayer's Birthday
![//inf_john_mayer_and_katy__](https://media.radaronline.com/brand-img/7MhiohjzI/480x251/2012/10/inf_john_mayer_and_katy_2_.jpg?position=top 480w, https://media.radaronline.com/brand-img/7MhiohjzI/640x335/2012/10/inf_john_mayer_and_katy_2_.jpg?position=top 640w, https://media.radaronline.com/brand-img/7MhiohjzI/768x402/2012/10/inf_john_mayer_and_katy_2_.jpg?position=top 768w, https://media.radaronline.com/brand-img/7MhiohjzI/1024x536/2012/10/inf_john_mayer_and_katy_2_.jpg?position=top 1024w, https://media.radaronline.com/brand-img/7MhiohjzI/1280x670/2012/10/inf_john_mayer_and_katy_2_.jpg?position=top 1280w, https://media.radaronline.com/brand-img/7MhiohjzI/1440x753/2012/10/inf_john_mayer_and_katy_2_.jpg?position=top 1440w, https://media.radaronline.com/brand-img/7MhiohjzI/1600x837/2012/10/inf_john_mayer_and_katy_2_.jpg?position=top 1600w, https://media.radaronline.com/brand-img/7MhiohjzI/2160x1130/2012/10/inf_john_mayer_and_katy_2_.jpg?position=top 2160w)
Oct. 17 2012, Published 9:39 a.m. ET
John Mayer and Katy Perry head out to dinner to celebrate John's birthday.
1. John Mayer and Katy Perry head out to dinner to celebrate John's birthday.
![//inf_john_mayer_and_katy___ _](https://media.radaronline.com/brand-img/PzrpoZrb_/324x500/2012/10/inf_john_mayer_and_katy_2__-_1.jpg 324w)
John Mayer and Katy Perry head out to dinner to celebrate John's birthday.
2. John Mayer and Katy Perry head out to dinner to celebrate John's birthday.
![//inf_john_mayer_and_katy_per](https://media.radaronline.com/brand-img/IXjMKdxSz/387x499/2012/10/inf_john_mayer_and_katy_per.jpg 387w)
John Mayer and Katy Perry head out to dinner to celebrate John's birthday.
3. John Mayer and Katy Perry head out to dinner to celebrate John's birthday.
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![//inf_john_mayer_and_katy_per__](https://media.radaronline.com/brand-img/jIzh8KIPj/324x500/2012/10/inf_john_mayer_and_katy_per_1_.jpg 324w)
John Mayer and Katy Perry head out to dinner to celebrate John's birthday.
4. John Mayer and Katy Perry head out to dinner to celebrate John's birthday.
![//inf_john_mayer_and_katy_per__](https://media.radaronline.com/brand-img/K9Brz-voM/331x500/2012/10/inf_john_mayer_and_katy_per_2_.jpg 331w)
John Mayer and Katy Perry head out to dinner to celebrate John's birthday.
5. John Mayer and Katy Perry head out to dinner to celebrate John's birthday.
![//inf_john_mayer_and_katy_per__](https://media.radaronline.com/brand-img/E9xCYsJJf/319x500/2012/10/inf_john_mayer_and_katy_per_3_.jpg 319w)
John Mayer and Katy Perry head out to dinner to celebrate John's birthday.