American Idol' Alums Reunite — See Sanjaya, Taylor Hicks and More Then & Now (PHOTOS)

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ABC/Jimmy Kimmel Live
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THEN (2004): William Hung

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Youtube/Jimmy Kimmel Live

NOW (2018): William Hung

American Idol's Annual Top 12 Party - Arrivals
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THEN (2007): Sanjaya Malakar

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Youtube/Jimmy Kimmel Live

NOW (2018): Sanjaya Malakar

American Idol Top 12 Party - Arrivals
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THEN (2006): Taylor Hicks

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Youtube/Jimmy Kimmel Live

NOW (2018): Taylor Hicks

2004 BET Awards - Pressroom
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THEN (2004): Ruben Studdard

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Youtube/Jimmy Kimmel Live

NOW (2018): Ruben Studdard

Idol Prom -
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THEN (2011): Haley Reinhart

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Youtube/Jimmy Kimmel Live

NOW (2018): Haley Reinhart

American Idol Top 12 Party - Arrivals

THEN (2006): Kevin Covais

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Youtube/Jimmy Kimmel Live

NOW (2018): Kevin Covais

American Idol Top 13 Party
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THEN (2009): Scott MacIntyre

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Youtube/Jimmy Kimmel Live

NOW (2018): Scott MacIntyre

The 52nd Annual GRAMMY Awards - Arrivals
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THEN (2010): “General” Larry Platt

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Youtube/Jimmy Kimmel Live

NOW (2018): “General” Larry Platt

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Youtube/American Idol

THEN (2008): Reynaldo Lapuz

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Youtube/Jimmy Kimmel Live

NOW (2018): Reynaldo Lapuz

Fox Reality Channel Really Awards 2007 - Arrivals
Kevin Winter/Getty Images for Fox

THEN (2007): “Crying Girl” Ashley Ferl

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Youtube/Jimmy Kimmel Live

NOW (2018): “Crying Girl” Ashley Ferl

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Youtube/American Idol

THEN (2007): “Chewbacca Girl” Trista Giese

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Youtube/Jimmy Kimmel Live

NOW (2018): “Chewbacca Girl” Trista Giese

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American Idol crowned its first winner on ABC Monday night, but it's the ghosts of show's past that really made an impression in a special segment on Jimmy Kimmel Live!

In a scene similar to the Michael Jackson-led music video for "We Are The World," former Idol stars came together for a song telling fans what they'd been up to, and it's hilarious.

Among the stars were former winners Ruben Studdard and Taylor Hicks, finalists Haley Reinhart and Sanjaya Malakar, and the infamous William Hung.

And the Winner of 'American Idol' Is...See Also

And the Winner of 'American Idol' Is...

After over 200,000 auditions, we have a new champion.

Check out the video below, and click through the gallery above for a look at the favorites then and now.

American Idol will return on ABC