Alotttts :
Eminem's whole new album
Christina's all I need ,I am,stronger then,Birds of prey,Primma Doona,Lift me up,you lost me...

Katy's Teenage dream,California gurls,Firework,peacock,circle the drain

Gaga's Aljendro,telephone
Tay's mine,innocent

Collaborations:
Airplnas-Hayley,Bob
I love the way you lie-eminem ,rihanna
behind the castle walls-T.I,Christina

and...I am tired ,I'll write more if I'll remember ^^

My fav songs that came out during 2010 were...

Innocent by Taylor Swift
Teenage Dream, Peacock, Firework by Katy Perry
Take It Off, We R who we R by Ke$ha
I Like It by Enrique Ingelsias (idk if I spelled that right)
Magic by B.o.B ft Rivers Cuomo of Weezer & Airplanes and DOn't Let Me Fall
Maybe by Sick Puppies
Na Na Na, & Sing by My Chemical Romance :D
Radioactive by Kings Of Leon
Frework by Katy Perry
Fall Into Me. I Don't Wanna Dance, Wondergirl, basically all the
songs on their new EP by Hey Monday
Yea like Haz all Eminem's new stuff
You Lost Me by Christina
Kids In Love by Mayday Parade
Dog Days Are Over & Cosmic Love by Florence & The Machine
Can't Stand It, Dare 4 Distance by NSN
Riding Solo, In My Head, What If by Jason Derulo
Waiting For The End by Linkin Park
Give A Little More, and Misery by Maroon 5
Raise Your Glass, F'n Perfect by Pink
Don't kill me but U Smile by Justin Beiber was also one :p also Pray
Jar Of Hearts by Christina Perri
Immpossible by Anberlin
Courage by Orithani ft Lacey
Animal, 1985 by Neon Trees
Pretty Girl Rock by Keri Hilson
If It's Love by Train
Like It's Her Birthday by Good Charlotte
Memories by Weezer ^^
DJ got us Fallin In Love Again by Usher
Little Lion Man by Mumford & Sons
For The Kill by La Roux
Dance In The Dark, Telephone, Bad Romance, etc by Lady Gaga
Like A G6, Rocketeer by Far East Movement
Dynamite by Taio Cruz

and yeah I could just go on and on...