_ Katy Perry’s 2 great singles:
               I kissed a girl
               Hot n cold
 

_ Rihanna’s 5 big songs:
             Umbrella
             Shut up and drive
              Disturbia
               Don’t stop the music
               Take a bow

Kanye west’s 3 big hits with the public:
                Stronger
                Homecoming
                Love lockdown
 

Jonas brothers are a big hit with Disney channel and stared in the movie camp rock
           Love bug
           Burning up
           SOS
 

Girls aloud are getting better and better :
            saying from the Paparatzzi
            Can’t speak French
            Promise
            Call the shots
 

The killers are a shy band with songs, they go away and think of great songs :
                Human
                Mr Brightside
             When you were young