1. Emma Stone, In Search of the Partridge Family VH1 Long before Emma Stone had an Oscar, she was a contestant on VH1's In Search of the Partridge Family in 2004, competing for a role on a reboot of the classic '70s sitcom. Here's a clip of her singing "Bitch" by Meredith Brooks — and yes, she went by the name "Emily" back then. 2. Jon Hamm, The Big Date USA A pre-fame Jon Hamm was on a dating show called The Big Date in 1996. He didn't make the best impression, but it's safe to say things worked out well for him anyway. AND LOOK AT THAT HAIR. 3. Kesha, The Simple Life Fox In 2005, when Kesha was still a teenager, Paris Hilton and Nicole Richie paid a visit to her family's home in Nashville on The Simple Life. Strange but true! 4. Lady Gaga, Boiling Points Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF MTV Remember that MTV prank show, Boiling Points? A young Stefani Germanotta (aka Lady Gaga) was one of its victims in 2005. She refused to eat a salad covered in garbage and lost $100. 5. Lady Gaga again, The Hills MTV Fast-forward three years to 2008: Lady Gaga is still relatively unknown but starting to make waves in the music industry, and Lauren Conrad and Whitney Port are tasked with styling her on The Hills. They refer to her as "some girl named Lady Gaga." 6. Laverne Cox, I Want to Work for Diddy VH1 You know her now as a performer, trans advocate, and overall icon — but did you know that in 2008 she was a contestant on VH1's I Want to Work for Diddy, competing to become Sean Combs' assistant? 7. Kristen Wiig, The Joe Schmo Show Spike Two years before her SNL debut changed everything, Kristen Wiig was pretending to be a marriage counselor on the 2003 reality prank series The Joe Schmo Show. 8. Heather Morris, So You Think You Can Dance Fox She didn't actually make it to the top 20, but she did appear in the audition rounds for Season 2. 9. Lucy Hale, American Juniors Fox American Juniors was a short-lived spinoff of American Idol starring kids, and Lucy Hale was a contestant on it. Here's a clip of her singing "Call Me." 10. Jamie Chung, The Real World MTV Nowadays you might know her from Once Upon a Time, Gotham, and The Gifted, but she first graced your television screens as a cast member on The Real World: San Diego in 2004. 11. Elisabeth Hasselbeck, Survivor CBS It's strange to think about now, but the former Fox News personality and cohost of The View actually got her start as a contestant on Survivor in 2001. She was actually pretty good at the game, too. Here's a clip of her elimination. 12. Jennifer Hudson, American Idol Fox Perhaps you haven't totally forgotten about this one, but it's still cool as hell: Jennifer Hudson came in seventh place on Season 3 of American Idol...and went on to win a Best Supporting Actress Oscar for Dreamgirls just two years later. Talent won! 13. Taryn Manning, Popstars WB You've seen her acting chops on Orange Is the New Black, but did you know she can sing, too? Taryn Manning was once a contestant on Popstars — a 2001 singing competition series on the WB. If she'd won, she would've been in a girl group with Nicole Scherzinger. Random! 14. David Giuntoli, Road Rules and The Challenge MTV Nowadays you know him as the star of Grimm and A Million Little Things, but his TV debut actually came in the early 2000s as a contestant on two of MTV's finest competition shows: Road Rules and then The Challenge. 15. Chris Hemsworth, Dancing With the Stars Seven Before he was an Avenger and a certified A-lister, Chris Hemsworth was an Australian soap actor who appeared on his homeland's version of Dancing With the Stars. According to Hemsworth, that gig almost cost him his Thor role. 16. Gigi and Bella Hadid, The Real Housewives of Beverly Hills Bravo They're two of the biggest supermodels on the planet now, but it wasn't so long ago that they were just the two teenage daughters of Yolanda Hadid on The Real Housewives of Beverly Hills. They've come a long way! 17. Aaron Paul, The Price Is Right CBS K, not technically reality TV but still funny: Aaron Paul was a contestant on The Price Is Right in 2000. He made it to the Showcase Showdown, but ultimately lost his chance at a sports car by overbidding.