The singer admits that she’s not a pleasant person when she is under the influence of drugs, however she can’t stop using illegal substances, reports FemaleFirst.
The British star says, "I’m not going to say I’m never going to do drugs again. I just know I’m not a good person on drugs."
Allen, 23, even confessed that she quit doing drugs, after she learned in November that she was expecting a baby with her boyfriend Ed Simons. Unfortunately, she had a miscarriage last January.