Lance Bass recently saw his former N*SYNC bandmate, Justin Timberlake, for the first time since he became a father to 5-month-old son Silas and he explained how much his friend has changed since welcoming his first child.

Bass joined the The Meredith Vieira Show and while in the NBC building this week, he ran into Timberlake, who appeared on The Tonight Show Starring Jimmy Fallon on Wednesday.

“It’s been five months, and it’s so amazing to see a friend go through this, because, you know, I grew up with him since he was 14-years-old," Bass explained, Billboard reports. "But to see this amazing dad now and all he wants to talk about is the kid.”

He added that Timberlake has "completely changed," adding, “You have to [change]. I mean, I can’t wait to be a dad myself just because I would love to know what that selflessness feels like.”

On the Tonight Show, Timberlake told Fallon of fatherhood, "It is the most insanely amazing, most beautiful, unbelievable thing that can ever happen to you.”

image courtesy of Douglas Gorenstein/NBC