Please help me ID this shrub
 

My friend gave me this shrub (I think) yesterday.It was uprooted from her garden,and I planted it in mine a few hours later.
She doesnt know what it is,other than its a flowering shrub! She cant remember what colour the flowers are,so Im hoping you can help me.

Looks like a Spirea, maybe 'Spirea Shirobana', but it is difficult to say alot more without a flower?
Sometime they are white, but on that shrub i'd err more towards the pink side?