Demi Lovato posted a picture of herself smoking marijuana on Tuesday, April 20th, in honor of what has become known as 'weed day' (4/20), after recently revealing that she is now 'California sober' following a near-fatal drug overdose.'420' derives from slang within the cannabis community, meaning smoking around the time 4:20p.m, and is now used as a day of celebration annually on April 20th, which is 4/20 on the US calendar.'Happy 420,' the 28-year-old singer captioned the photo on her Instagram Stories to her 102million followers, which showed her using what appeared to be a glass pipe made for marijuana consumption.In February this year, Lovato revealed that she suffered 'three strokes and a heart attack' following her drug overdose in.
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