Christina Aguilera always knew she was destined for stardom.
Sure, we know her as a Grammy Award-winning, TV and film-starring superstar today, but back in 1999 Aguilera was just a former Mouseketeer ready for her big break.
ET was on set with Aguilera as she filmed her very first music video for Genie in a Bottle. Just months after Britney Spears became a pop culture phenom with her breakout single "…Baby One More Time," Aguilera told ET, "I know my time will come soon and I'll be joining Britney soon."
She was right. 15 years ago this week, Aguilera's debut single "Genie in a Bottle" was No. 1 on the charts for six consecutive weeks! In honor of Throwback Thursday, ET is heading back to the "Genie" set.
"It's about me and a bunch of my friends hanging out on the beach and we're just having fun in the summer and it's kind of genie-ish the vibe, we have an Arabian thing going on, so it's cool," she told us.
But it wasn't all fun and games for Aguilera, who was prepping to release her debut album and hit the road. "I'm really dedicated to this," she said. "I've always been serious about my career, so I'm ready for it."
The singer would go on to release her self-titled album later that year and top the Billboard 200 albums chart, as well.
Check out ET's vintage Xtina clip in the player above and let us know: What's your favorite Christina song? Tweet us using #ETNow and chime in on the comments section below.