Benedict Cumberbatch remains flawless and does Alan Rickman impressions

Benedict Cumberbatch and his mother, the ever flawless Wanda Ventham, were on French and Saunders Radio 2 show on New Year's Day.

TL;DL summary:

Ben's childhood
How Ben ran nude and would do it again
Ben does terrible Bronx, Cockney, and Belfast accents
Sings 'Candle in the Wind' as Alan Rickman
Wanda Ventham cries while watching Ben perform
The meaning of Cumberbatch

Could be be any more perfect?
Haters, you can be seen to the left.