2PM members Taecyeon and Junsu tweeted their support for the opening of Chansung's new gym, 'CS-GYM'.

On the 5th, Junsu tweeted, "Our maknae Chansung's GYM OPEN!!! A lot of fans came too^^ CS-GYM, do well! Chansung, fighting" and uploaded a photo of him and Chansung at Chansung's new gym, along with the fans who visited.

Taecyeon also tweeted to Chansung, "Ah, I'm sorry I couldn't go to the gym opening today but I'll buy something you need and go~" The two had a friendly banter online, with Chansung jokingly accepting the present as an apology.

Back in June, Chansung revealed that he was planning on opening a gym in Nonhyeon-dong, Seoul with trainer Hwang Moh.

Source: Junsu's Twitter and Taecyeon's Twitter