Rihanna spends birthday with Chris Brown

Rihanna celebrated her 25th birthday with boyfriend Chris Brown.

The controversial couple partied on holiday in Hawaii, with Rihanna posting a photograph to her Twitter page.

The snapshot showed the singer beaming with happiness in a bikini top as she perched on Chris's lap in a limo.

"Pour it up pour it up! #birthdaybehavior," she wrote on the social networking page.

The couple were joined by Rihanna's brother Rorrey Fenty who posted a picture of himself and a group of friends to his Instagram account.

Rihanna also tweeted about waking up to "sunshine in paradise" referring to her Honolulu location.

The cosy photograph put an end to reports that Rihanna and Chris were barely speaking after a "bust up at the Grammys."

In fact, Rihanna posted a throwback photograph showing her celebrating her birthday with her beau five years ago.

"ThrowbackRiRi my surprise 20th birthday party!! Im an old b**** now!" she tweeted. "Thank God for His gifts and His endless mercies! #25 #MilestoneLife"

Speculation had been rife that Chris was jealous over Rihanna's bond with musician Drake.

"Chris and Rihanna had a big bust-up at the Grammys over Drake," a source told British newspaper The Sun.

"She was messaging him [via text] and Chris saw and it didn't go down well."