Ong Seong Wu revealed the Wanna One members still talk every day after even their disbandment.

On the March 8th installment of 'Entertainment Relay', Ong Seong Wu was asked about being known as the 'Advertisement Master' after shooting 20 ads solo. On what kind of ad he'd like to model for in the future, he said, "A car ad," adding he would show his jawline as he drove in reverse.

Ong Seong Wu said of the Wanna One members, "I really miss them. Since I'm not with the members, there are a lot of times it feels empty. I contact them every day. We talk on the phone, and we still have a group chat going on. In the future, I want to hold a fan meeting with 20,000 audience members and invite them as guests." The former Wanna One member also revealed he has about 2000 selfies of himself on his phone.