See Ryan Gosling's Evolution in ET's 'When We First Met'

From teen actor to Oscar nominee, ET has been with Ryan Gosling through it all.

From teen actor to Oscar nominee, ET has been with Ryan Gosling through it all -- and our Facebook Watch series, When We First Met, has the footage to prove it. 

After nearly winning big at the 2017 Oscars for his role in La La Land, the 37-year-old actor is hard at work bringing Neil Armstrong's life to the big screen in the biopic First Man, which is set to come out in 2018, 20 years after Gosling and ET were first introduced. 

ET was with with the actor on the 1998 set of Young Hercules, but he started to make his mark in Hollywood years earlier, coming up on The Micky Mouse Club in 1993, alongside a few other famous faces.

"It was Britney and Justin and then Christina and myself, and it was like a bootcamp on the industry, you know?" he told ET in 2002. "It sort of taught us how to be professional."

"I remember Christina, she was like 11 or something, she looked like she was 8, and a voice like I've never heard in my life coming out of this little body," he continued of his co-stars, noting that Spears' sexed-up image just didn't sit right with him. "All my friends are like, in love with Britney Spears, and I remember playing basketball with Britney when she was 12, and I can't see her in a sexual way, you know? And I kind of feel mad when people see her like that or talk about her. She comes out with a snake around her neck, there's something wrong about that."

In 1998, Gosling enthusiastically revealed that he finally started getting leading roles at 17 years old.

"I've never played the hero or the cool guy. I've always been the loser, the goof, the geek, so just kind of getting used to that is weird. I like it, it's fun. I get to kiss the girl and win the fights, which is what I've always wanted to do," he confessed. 

Just a few years later, Gosling was dating Sandra Bullock -- and a few years after that, his Notebook co-star, Rachel McAdams.

"I was like, 'Hey Rachel, we should go out. She was like, 'Oh, take off, you hoser. I'm not attracted to you, eh?' I'm like 'Oh, OK.' So that was how that worked," he laughed to ET in 2004 -- one year before he and McAdams stole the show at the 2005 MTV Movie Awards after winning Best Kiss. 

By 2011, Gosling was dating another co-star, Eva Mendes, and while the pair (who share two young daughters) have remained private about their relationship, Gosling's mom has been a great stand-in at events. 

One awards show companion Gosling wasn't so hyped about? That would be his former Mickey Mouse Club co-star, Timberlake. 

"[Mendes] is at home with our girls," he explained to ET's Nancy O'Dell at the 2017 Golden Globes, adding that he wasn't "really" excited to be seated next to Timberlake instead. "It will be lovely to see him, but he's certainly no comparison. He'll understand." 

Timberlake will be featured next week on When We First Met. Head over to Facebook and like When We First Met, so you don't miss any of the latest episodes!