An angry Justin Bieber has hit out at rumours about his private life and claimed that news reports are getting "out of control".
The pop megastar was provoked into his outburst by a photo on US gossip site TMZ which apparently showed him with a bottle of codeine cough syrup - used as a recreational drug in the US and known as "sizzurp".
He wrote: "Some of these rumours about me are getting a little out of control now. dont believe the bs. gonna focus on the positive. i understand that rumours come with the territory but im gonna stay me. focus on the music. u wanna know what im about...it is all right there. #BELIEVEacoustic."
Biebs has also recently been the subject of groping accusations after his hand touched a fan's breast during a photo opportunity.
And pictures of him smoking at a party caused a bit of a kerfuffle at the start of the year.
The 18-year-old is on track to hit No 1 in the US albums chart with Believe Acoustic.