Rihanna & Katy Perry Party Poolside In Vegas
![//luckb_](https://media.radaronline.com/brand-img/K4pv8Bgxo/480x251/2010/09/luck091810b_01.jpg?position=top 480w, https://media.radaronline.com/brand-img/K4pv8Bgxo/640x335/2010/09/luck091810b_01.jpg?position=top 640w, https://media.radaronline.com/brand-img/K4pv8Bgxo/768x402/2010/09/luck091810b_01.jpg?position=top 768w, https://media.radaronline.com/brand-img/K4pv8Bgxo/1024x536/2010/09/luck091810b_01.jpg?position=top 1024w, https://media.radaronline.com/brand-img/K4pv8Bgxo/1280x670/2010/09/luck091810b_01.jpg?position=top 1280w, https://media.radaronline.com/brand-img/K4pv8Bgxo/1440x753/2010/09/luck091810b_01.jpg?position=top 1440w, https://media.radaronline.com/brand-img/K4pv8Bgxo/1600x837/2010/09/luck091810b_01.jpg?position=top 1600w, https://media.radaronline.com/brand-img/K4pv8Bgxo/2160x1130/2010/09/luck091810b_01.jpg?position=top 2160w)
Sep. 20 2010, Published 11:11 a.m. ET
Rihanna and Katy Perry party at the pool in Las Vegas.
1. Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
![//luckb__ _](https://media.radaronline.com/brand-img/V9GW4m4X_/333x500/2010/09/luck091810b_01_-_1.jpg 333w)
Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
2. Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
![//luckb_](https://media.radaronline.com/brand-img/6iE2aplQ8/333x500/2010/09/luck091810b_05.jpg 333w)
Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
3. Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
![//luckb_](https://media.radaronline.com/brand-img/tuEh_wMHd/333x500/2010/09/luck091810b_06.jpg 333w)
Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
4. Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
![//luckb_](https://media.radaronline.com/brand-img/q9SO5_0b3/333x500/2010/09/luck091810b_09.jpg 333w)
Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
5. Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
![//luckb_](https://media.radaronline.com/brand-img/JAwnChwgj/333x500/2010/09/luck091810b_32.jpg 333w)
Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
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6. Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
![//luckb_](https://media.radaronline.com/brand-img/LkeXGCiYk/333x500/2010/09/luck091810b_35.jpg 333w)
Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
7. Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
![//luckb_](https://media.radaronline.com/brand-img/FaTUMthuW/333x500/2010/09/luck091810b_37.jpg 333w)
Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
8. Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
![//luckb_](https://media.radaronline.com/brand-img/0Kxqzbizr/333x500/2010/09/luck091810b_38.jpg 333w)
Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
9. Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
![//luckb_](https://media.radaronline.com/brand-img/-FzO2e2wa/333x500/2010/09/luck091810b_39.jpg 333w)
Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
10. Katy Perry & Rihanna party at the pool before Katy's bachelorette party.
![//luckb_](https://media.radaronline.com/brand-img/DXsJfh8Zi/333x500/2010/09/luck091810b_41.jpg 333w)
Katy Perry & Rihanna party at the pool before Katy's bachelorette party.