Visiting London (recommendations please)

I'll be in London from the 7th until the 17th of April.

Since I was raised in London I'm not interested in the typical tourist stuff but I am interested in knowing what events and exhibitions will satisfy my thirst for art and culture! Theatre recommendations would also be good. I haven't been to London since Protected content , so please let me know if there are any "new sights" worth seeing.

Thanks so much!

Oh and please let me know if there's an InterNations event while I'm in town.