Trey Songz is dropping A LOT of cash to live next door to his good buddy Ne-Yo. He just rented a 13,000 square-foot mansion in the Hollywood Hills for $35,000 A MONTH! 

10 bedrooms... 12 bathrooms... must be nice!

Check out photos of his sick new house at TMZ.com

Trey Songz Gets A Rub Down From A Fan