Rihanna looked every inch the superstar as she checked out several multi-million-dollar mansions in the Hollywood hills yesterday afternoon, and we have all the details on what might become her new dream home!

rhouses1615.jpg We snapped the R&B singer on Rising Glen Drive (above) checking out a $6.5 million dollar 4 bedroom, 4 and a half bathroom mid-century modern, and it looks like this one might have been her fav! The home has glass walls that create the illusion of an indoor-outdoor living environment, and the gated property boasts a large pool, an outdoor theater, a killer view and a spacious grassy lawn.

celebhouses.jpg Rihanna also checked out some other celebs' former homes - first she went to Christina Aguilera's 4 bedroom, 7 bathroom Devlin Drive property (right), which is currently listed at $6.9 million, and then she stopped by Jerry Seinfeld's $6.2 million home (left) on Sierra Mar Place, which has 3 bedrooms and 5 bathrooms, a built-in gym, a huge pool and all the extras a star could possibly want.

Rihanna housesunset8.jpg

Finally, Rihanna toured a $4.9 million mansion that Britney Spears once considered purchasing on Sunset View Drive.

The gated, multi-level, modern home has 5 bedrooms and 4 bathrooms, along with a massive pool and a hotel style deck that appears to float above the city.

So which one will she choose? We'll keep you posted!