They get writing credits on most ( all

) and it usually used as an argument for the "she is talented" argument. But what i don't understand is -
1) Why do their songs sound exactly like the kinda music Dr Luke & his team make without them. What do they actually contribute ?
And
2) Why can't they write songs with out 6 co-writers?
(this mainly applies to Kesha, and teenage dream Katy Perry)
Do people actually think they write their own stuff or is just me who is very suspicious ?
What do you think about there actually contributions to the songs they have credits for?
