(Gain's Instagram)

Singer Gain took to Instagram to post several photos of her birthday party on Thursday, returning to social media for the first time in three months since she was mired in marijuana controversy.

In the photos she captioned “Hello. Today was full of happiness, thank you,” Gain was seen with a short black hair, gazing into the camera with her while cupping her chin with her hand. Other photos showed a birthday cake that featured number candles indicating the singer’s age, 31, and the singer celebrating her birthday with her friends.

Back in June, Gain was involved in a police investigation over her claim that an acquaintance of her ex-boyfriend and actor Joo Ji-hoon had offered her marijuana. After a police investigation, the acquaintance was cleared of all suspicions.

(Gain's Instagram)

She had also revealed that she was receiving psychiatric treatment and halted all activities on social media.

(lotus@heraldcorp.com)