Los Angeles, Dec 4 (IANS): Rapper Chris Brown has gone online to post a picture of himself and singer Rihanna, seen wearing white underwear and a large-sized camouflage coat.

Rihanna is seen chilling on a sofa, while Brown is sitting next to her, dressed in a white T-shirt and baseball cap and smoking a roll-up, reports thesun.co.uk.

The picture caption reads: "What would music today sound like if these kids didn't exist?"

The "Don't wake me up" singer reinstated his Twitter account Sunday night following a row with comedian Jenny Johnson over his 2009 assault on Rihanna, which prompted him to shut it down.

Rihanna, now said to have reunited with Brown, tweeted a picture of herself sitting on his lap and kissing him last week.

She wrote: "I dont wanna leave!!! Killed it tonight baby!!!"

The 24-year-old star fuelled speculation that the pair were back together last month, when she tweeted a picture of Brown lying topless on her bed.