Demi Lovato

Demi Lovato: I don't need alcohol to have fun

Demi Lovato: I don't need alcohol to have funThe pop star singer insists she doesn't need to be drunk to have fun.

At 20 years old, her past struggles with drugs and alcohol have been well-documented since her 2010 breakdown. Demi now insists she's put her darkest days behind her.

The issue came up on Monday though when a Rihanna fan tweeted a message referencing her track with ex-boyfriend Chris Brown, called Nobody's Business.

'Ain't nobody's bidnessssss!!!' the singer wrote.

Apparently a lot of her followers misinterpreted the light-hearted message and accused her of lapsing in her sobriety. 'I can't quote Rihanna without people thinking I'm drinking?' she wrote.

Demi has a busy schedule this year. She recently released her fourth album in six years and is set to return for her second season as a judge on US The X Factor this fall.