Checking in with five former 'American Idol' contestants

LOS ANGELES -- "American Idol" brought pop stardom to just a handful of contestants, but others who competed over the years made an impression.

Many have faded from view, while others parlayed the talent show's spotlight into ongoing music and other careers in show business. As "American Idol" wrapped its 15-year run Thursday, five former performers shared highlights of how "Entertainment Boot Camp 101" -- as one fondly termed the "Idol" experience -- helped lead them to today.

Melinda Doolittle, one of the finalists from "American Idol," waves to fans as she rides in a car at Belmont University on May 11, 2007, in Nashville, Tennessee. Doolittle, a professional backup singer in Nashville before she became a top-three finisher in season six, remains loyal to the city and music.Mark Humphrey ~ Associated Press file

MELINDA DOOLITTLE: A professional backup singer in Nashville, Tennessee, before she became a top-three finisher in season six, Doolittle remains loyal to the city and music. She's traveling internationally with her band and working on an upcoming project -- an album and show -- that will "represent all the powerful soul songs that define the genre of soul." It's a chance to collaborate with her favorite artists, she said, but she isn't ready to name names.

Former contestant David Hernandez arrives at the "American Idol" finale May 16, 2013, in Los Angeles. The seventh-season semifinalist, Hernandez, will tour this summer in North America and head to the Middle East to perform for U.S. troops.Chris Pizzello ~ Invision/AP, file

DAVID HERNANDEZ: The seventh-season semifinalist will tour this summer in North America and head to the Middle East to perform for U.S. troops. While describing himself as a committed balladeer, his new album (not yet titled), produced by Printz Board of the Black Eyed Peas, is pop and R&B influenced: "It's like Cee Lo Green meets myself." Board's production team shot the video for "Beautiful," the upcoming first single.

Former contestant Blake Lewis arrives at the "American Idol" finale May 16, 2013, in Los Angeles. The Seattle beatboxer, who finished second to season-six winner Jordin Sparks, has parked himself in Los Angeles to pursue music and voice-over work, building on his credits in video games ("The Last Gremlin") and anime.Chris Pizzello ~ Invision/AP, file

BLAKE LEWIS: The Seattle beatboxer, who finished second to season-six winner Jordin Sparks, has parked himself in Los Angeles to pursue music and voice-over work, building on his credits in video games ("The Last Gremlin") and anime. With his own record label, Lewis is producing other artists as well as music for commercials. He's toured with fellow ex-"Idol" contestants as part of the cover band Postmodern Jukebox ("A super fun hang") and is working on a new beatboxing album.

Former contestant Kimberley Locke arrives at the "American Idol" finale May 16, 2013, in Los Angeles. After finishing third in season two, Locke had a hit single with "8th World Wonder" and dabbled in TV and modeling.Chris Pizzello ~ Invision/AP, file

KIMBERLEY LOCKE: After finishing third in season two, Locke had a hit single with "8th World Wonder" and dabbled in TV and modeling. She's still singing, with a cover of "I Will Survive" out this week, but she's also building a diverse career portfolio: "I've rebranded myself as the artist, the coach, the cook." She's on the East Coast, working with others on their music projects through her company, I AM Entertainment, teaches singing and has an online show, "Cooking with Kimberley."

DANNY NORIEGA: The flamboyant semifinalist from season eight, who was lauded by Simon Cowell as courageous, said his career went in "an unexpected direction -- good unexpected" after he performed on "RuPaul's Drag Race." He's touring with RuPaul's "Battle of the Seasons" as Adore, whom he calls his Hannah Montana-like alter ego, and has a new Adore album, "After Party." Said Noriega: "If you play it smart, fans will grow with you."