Some highlights of yesterday’s Madonna interview with David Letterman. The star was appearing in order to promote her ‘Celebration’ best-of. It’s one of her more revealing chats, i.e. ‘friendly’, ‘relaxed’ and ‘controversial’…she talks joints! Marriage! A-Rod (sort of)! Er, pizza! And so on!

Keri Hilson performs her new single ‘Knock You Down‘ on Letterman – with a little help from Kanye West.

‘Knock You Down’ is taken from Keri’s ‘In A Perfect World’ album.