Some of the best songs ever made can be heard on American Idol each week, and they're not just those performed by the contestants. We've received hundreds of emails inquiring about some of the great songs you've heard in the background during the shows. The great thing about those songs is that they always seem to perfectly reflect the mood of what's happening at that moment.

We've gone ahead and compiled a list from the shows thus far in season eight. Check out the song list below:

Hollywood Shows:

"California Dreamin'" by Jose Feliciano
"Ooh La" by The Kooks
"Lacrimosa Dominae" by Immediate Library
"Feeling The Moment" by Feeder
"Feelin' Good" by Michael Buble
"Shut Up And Drive" by Rihanna
"Angeles" by Elliot Smith
"I Know What Boys Like" by The Waitresses
"Pipe Dreams" by Travis
"Hollywood Swinging" by Kool & The Gang
"This is Your Life" by Low vs. Diamond
"Underdog" by Sly and the Family Stone
"California Bound" by Carolina Liar
"Home" by Daughtry
"Friend Like You" by Joshua Radin
"Best Days" by Graham Colton
"Into Dust" by Mazzy Star
"Tears of a Clown" by Smokey Robinson
"A Falling Through" by Ray LaMontange
"What About Now" by Daughtry
"The Time of My Life" by David Cook
"When I Grow Up" by Pussycat Dolls
"Rise" by Craig Armstrong

Phoenix Auditions:

"What A Wonderful World" by Louis Armstrong
"A Daily Anthem" by David Cook
"Summer In The City" by The Lovin' Spoonful
"Don't Stop Til You Get Enough" by Michael Jackson
"Careless Whisper" by George Michael
"Alone" by Heart
"Dust In The Wind" by Kansas
"Jaws" from the Original Soundtrack
"Shake It" by Metro Station
"Can't Get Enough Of Your Love Babe" by Barry White
"Rooms On Fire" by Stevie Nicks
"Blue Collar Man" by Travis Tritt
"Barbie Girl" by Aqua
"I Kissed a Girl" by Katy Perry
"The Candy Man" Karaoke by PoSound Band
"The Candy Man" by Sammy Davis Jr. & Mike Curb Congregation - 20TH Century Masters: The Millenium Collection, The Best of Sammy Davis Jr.
"God Save The Queen" by Coldstream Guards
"Wanted Dead or Alive" Karaoke Version Starlite
"Wanted Dead or Alive" by Bon Jovi
"The Good, The Bad & The Ugly" by Ennio Morricone
"Lost" by Coldplay
"I'll Be Seeing You" by Billie Holiday

Kansas City Auditions:

"Kansas City" by Fats Domino
"Black and White Town" by The Doves
"Love Song" by Sara Bareilles
"Kansas City" by Lee Dixon
"A Thousand Miles" by Vanessa Carlton
"Sir Duke" by Stevie Wonder
"In Love With A Girl" by Gavin DeGraw
"Feels Like Tonight" by Chris Daughtry
"If I Only Had A Brain" Wizard of Oz - Karaoke version
"You And Me" by Lifehouse
"Push It" by Salt N Peppa
"Train from Kansas City" by Neko Case
"Hometown Glory" by Adele
"How To Save A Life" by The Fray
"Signed, Sealed, Delivered I'm Yours (Motown Remixed)" by Stevie Wonder
"Signed, Sealed, Delivered I'm Yours" by Stevie Wonder
"You Gotta Get A Gimmick" by 2008 Broadway Cast Recording
"A Movie Script Ending" by Death Cab For Cutie
"Move On Up" by Curtis Mayfield
"Happy Trails" by Roy Rogers
"Falls Apart Again" by Brandi Carlile
"I Believe" by Fantasia

San Francisco Auditions:

"Somebody To Love" by Jefferson Airplane
"Vogue" by Madonna
"You Found Me" by The Fray
"San Francisco (Flowers In Your Hair)" by Scott McKenzie
"War" by Edwin Starr
"Weird Science" by Oingo Boingo
"Overjoyed" by Stevie Wonder
"Viva La Vida" by Coldplay
"Over The Rainbow" by Kamakawiwo'Ole
"I Can Only Imagine" by Mercy Me
"Dance With Me" by The Sounds

Louisville Auditions:

"Blue Grass" by Kay Starr
"Kentucky Jelly" by Brad Paisley
"Call To The Post" by Phil Thomas & Steve Buttleman
"Keep Holding On" by Avril Lavigne
"Bad Luck" by Thom Shephard
"The Adventure" by Angels and Airwaves
"Best Days" by Graham Colton
"Shout" by Isley Brothers
"Walking in Memphis" Marc Cohn
"So Small" by Carrie Underwood
"Tired" by Adele
"Breakaway" by Kelly Clarkson

Jacksonville Auditions:

"Don't Stop Believin'" by Journey
"Atomic Dog" by George Clinton
"Kiss Me" by Sixpence None The Richer
"Life Is A Highway" by Rascal Flatts
"Hot Hot Hot" by Buster Poindexter
"Cape Cod Kwassa Kwassa" by Vampire Weekend
"We Are Family" by Sister Sledge
"A Beautiful World" by Carolina Liar
"Walking On Sunshine" by Katrina & the Waves

Salt Lake City Auditions:

"Crazy Horses" by The Osmonds
"Shiny Happy People" by REM
"One Of Those Days" by Joshua Radin
"I'm Every Woman" by Chaka Khan
"Peter Cottontail" by Rosemary Clooney
"Merrie Melodies Theme" by from Merrie Melodies
"Put On A Happy Face" by Dick Van Dyke
"The World I Know" by Collective Soul
"My Daily Anthem" by David Cook
"Permanent Monday" by Jordin Sparks
"A Falling Through" by Ray LaMontagne
"Whatever Gets You Through Today" by The Radio

San Juan Auditions:

"America" from West Side Story
"Rhapsody In Blue" by St. Louis Orchestra
"Livin' La Vida Loca" by Desmond Child & Rouge
"Life In Technicolor" by Coldplay
"Tutti-Fruitti" by Little Richard
"You're No Good" by Linda Ronstadt
"Age Of Aquarius" by 5th Dimension
"Let The Sunshine" by 5th Dimension
"I Believe In A Thing Called Love" by The Darkness
"How To Be Dead" by Snow Patrol
"Wicked Game" by Chris Isaak
"Sirius" by Alan Parsons Project
"The Final Countdown" by Europe
"I'm So Excited" by The Pointer Sisters
"You're My Best Friend" by Queen
"Can't Hurry Love" by The Supremes
"Wedding March" by Michael Solloway
"I Wanna Dance With Somebody" by Whitney Houston