Still, not everyone proved to be an undiscovered talent.

Arguably, some of their fabulous renditions could even rival the original song.

Here are some of the most epic “American Idol” auditions ever.

Kelly Clarkson on American Idol

The initial critique from the critical Simon Cowell?

“Very good.”

Nevertheless, imitating animals was far from Underwood’s most impressive skill shown that day.

Carrie Underwood smiling

She even stated that her very 2000s denim top used to be pants that she’d repurposed.

With her bubbly personality and incredible vocals, all three judges said yes to Clarkson going to Hollywood.

“My goal was just to be a backup singer I never intended to be in front.”

Kelly Clarkson singing

Still, before all that could happen, a hopeful teenage Sparks first had to audition for the show.

In contrast, Paula Abdul openly disagreed after he expressed disapproval at Sparks smiling through her rendition.

Yet, even after stating that she was “too sugary,” Cowell admitted that he liked Sparks.

Jordin Spark smiling

Nonetheless, he opposed Randy Jackson’s statement when he said that “everything was perfect.”

Cowell remarked, “You’re gonna do well, but it wasn’t perfect.”

However, in 2004, Barrino was an unknown talented teenager with dreams of making it big.

Fantasia Barrino smiling

The young contestant then gave an impressive, attention-grabbing performance of “Killing Me Softly.”

As fans know, Barrino would ultimately go on to win her season.

He added, “I could’ve gotten number one, number two at least.”

Clay Aiken performing on American Idol

In herinterview, the professional background singer initially appeared timid and seemed somewhat nervous about taking on the spotlight.

However, the artist admitted that she had to face her fears and challenge herself.

Cowell stated, “One million percent yes, " in response to moving on.

Melinda Doolittle smiling

Showing off melodic vocals that definitely pleased viewers, Hicks appeared incredibly passionate as he performed.

Still, she asked him to give the trio “20 seconds of something else.”

Hicks would eventually go on to win his season.

Taylor Hicks performing on American Idol

Ultimately, McPhee’s impressive voice earned her runner-up in Season 5.

“I want to go out there and fearlessly just give ‘em a show,” he stated.

Lambert made a bold choice and told the judges he would be singing “Bohemian Rhapsody.”

Katharine McPhee performs on American Idol

True to his word, Lambert offered an emotional and captivating rendition of the Queen classic.

Regardless, Cowell still gave Lambert a yes, as did Randy Jackson and Kara DioGuardi.

The musical creative would go on to be the runner-up for the eighth season.

Adam Lambert smiling

The show even talked to Phillip’s father, who gushed over his son’s talent.

“‘American Idol’ will change his life because this is what he loves,” said Phillips Sr.

The audition even showed the adorable interaction between Phillips’ mother and the host.

Phillip Phillips about to perform on American Idol

However, the “Empire” actor stated that her audition would exceed any theatrical Disney performance.

In response to Randy Jackson’s prompting, Hudson agreed that she was the next American Idol.

The “Dreamgirls” actor then performed Aretha Franklin’s “Share Your Love with Me.”

Jennifer Hudson performing

Naturally, the talented Hudson gave an attention-grabbing rendition that was truly one to remember.

It came as no surprise that the responses were all positive.

In herinterview, the cheerful 19-year-old told “Idol” viewers about her life with her grandfather.

Kellie Pickler performing on American Idol

Yet, despite her hardships, the young contestant radiated optimism.

Pickler received plenty of praise, though Simon Cowell said she was “oversinging” slightly.

Still, all three agreed that Pickler was something special and sent her on to the next round.

Todrick Hall smiling

The delightful Hall wanted to ensure histryoutwas unquestionably captivating.

Hall’s song was a melodic parody that incorporated the judges and the antics of prior contestants.

Even so, all four judges said yes, earning Hall his ticket to Hollywood.

He would ultimately make it to the Top 16 before being eliminated.