Ashlee Simpson - Boys
Ashlee Simpson - Autobiography
Britney Spears - Radar
Chris Brown - Down
Colbie Cailat - Tailor Made
Fergie - Here I Come
Hilary Duff - Between You and Me
Jessica Simpson - Fired Up
Jesse McCartney - How Do You Sleep
Jonas Brothers - That's Just The Way We Roll
Jonas Brothers - Goodnight and Goodbye
Katherine McPhee - Open Toes
Lindsay Lohan - Black Hole
Lindsay Lohan - Nobody Til' You
Madonna - Miles Away
Mariah Carey - Migrate
Mariah Carey - Side Effects
Miley Cyrus - See You Again (this wasn't a real single, it just got a lot of airplay and downloads. a video would have been nice)
Paris Hilton - Screwed
Paris Hilton - Turn It Up
Vanessa Hudgens - Let's Dance
Well, I have one that should've been released to an album. It was left as a B-side track.
Listen to Janet Jackson's "Put It On You." It's almost a Beyoncé-style track that should've been on Damita Jo, because it's the best song she made that year. Amazing, I can't stop listening to it.
Fefe Dobson - Get You Off (off of Sunday Love)
Brandy - Nothing
Ne-Yo - Say It
Chris Brown - Damage
Rihanna - Hatin On the Club (if it was leaked)
Ashlee Simpson - What I've Become
Fefe Dobson - We Went For A Ride
Fefe D. - Unforgiven
Well, I have one that should've been released to an album. It was left as a B-side track.
Listen to Janet Jackson's "Put It On You." It's almost a Beyoncé-style track that should've been on Damita Jo, because it's the best song she made that year. Amazing, I can't stop listening to it.
That song is a wreck, and if anything..the song is a Amerie rip, like much of Beyonce's most recent work
Christina Aguilera - Makeover, Walk Away
Britney Spears - Breathe On Me, I Got That Boom Boom
Ciara - I Proceed
Spice Girls - Do It, Step To Me
Lindsay Lohan - Speak, Nobody Til You
Chris Brown - Down
Carrie Underwood - Some Hearts
haha, that's damn ... creative 
Everytime is the best though.