When Caitlin Lucia stood before Katy Perry, Luke Bryan and Lionel Richie on Sunday's American Idol, the 22-year-old aspiring singer told the Perry that she was one of her biggest musical influences, and that she had even been playing gigs at Hotel Café for three years, the same place the "Swish Swish" singer got her start.
To show just how much she had been inspired by Perry, Lucia decided to perform her 2008 track "I Kissed A Girl." Strumming away at her guitar, the young Idol hopeful delivered a beautiful, bluesy rendition of the famous single that really blew the judges away.
"Usually, I say to a contestant singing my song, 'Sing it as good as or better [than me],' and I think she might have sung it better," Perry said, jokingly feigning frustration. "You gave it a really incredible original spin."
However, Perry and her fellow judges said they wanted to see the singer deliver something even bigger.
"I think you've got a bigger motor than you're showing us, though," Perry said.
"We can hear it," Richie added. "I mean, you're just cruising along, touching the top, and there's more after that top. I know there is."
Lucia will get a chance to show just how much more she can give, since all three judges voted her through to Hollywood.
Another Idol hopeful who impressed the judges with her performance was Gabby Barrett. The singer was accompanied to the auditions by her father, who she said has been supporting her dream of being a musician since she was a little girl.
"My dad has sacrificed so much for me, and I'm gonna go in there with my head high and they gotta pick me," an emotional Barrett said in a pre-taped solo interview.
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Watch Katy Perry Cry During Emotional 'American Idol' Audition
The 17-year-old singer had a rough start, singing a cover of Carrie Underwood's "Good Girl" that the judges stopped soon after she began. Bryan and Richie explained that they wanted to hear Barrett's voice, not just her impression of Carrie Underwood.
All the while, her excited dad stood outside the room, listening through the door to hear how the audition was going.
The young songstress then showed her true personality with a beautiful rendition of a church song that blew the judges away and earned her a golden ticket to Hollywood.
However, before the audition was over, Perry thought it would be hilarious if they pranked Barrett's dad by telling him that his little girl "didn't make it through."
Perry went out to grab the dad to break the fake bad news, while Barrett waited in the room, hiding the golden ticket, and pretended to be sad. As Perry pretended that his little girl was heartbroken, his daughter turned around beaming with the ticket and the dad burst into tears of joy.
"Because here is the thing -- we have heard those songs so many times, day in and day out," Perry admitted. "And God bless ... I love my songs, I am so grateful for them ... but I don't need to hear them again."
"Unless you interpret them extremely differently," Perry added, explaining that she wouldn't mind hearing her own tunes "if you sing them better than us."
Check out the video below to hear more.
American Idol airs Sundays and Mondays at 8 p.m. ET/PT, 7 p.m. CT on ABC.