London, Mar 25 : Pop singer Rihanna, it seems, has moved on after her alleged bust-up with beau Chris Brown.

The 21-year-old star was seen house hunting in the Hollywood Hills.

Rihanna looked perfect as she looked at the properties in the plush neighbourhood.

While the Barbados beauty moved on, the controversy is "taking its toll" on Brown.

According to Brown's pal and singer Tyrese Gibson, looming charges have left Brown struggling to focus on his career.

"Although he appears to be really strong through all of this, it's really taking a toll on his spirit," The Sun quoted him as telling People.

"People like me and Puff (P Diddy), we're just trying to show him love and keep his spirits up while he's going through all of the heat, and there are a lot people doing the same for Rihanna."

"It's really hard for him to focus right now on his music, even though he really wants to," Gibson added. (ANI)