Katy Perry, 41, holds hands with ex-Canadian PM boyfriend Justin Trudeau, 54, before proudly watching his speech as she makes a surprise appearance at the World Economic Forum in Davos
Moment David awkwardly ignores question about his son Brooklyn's broadside at his family as he records podcast about 'regret'
Mel B calls for action over words in impassioned speech on domestic abuse at the World Economic Forum in Davos
Bill Gates' daughter Phoebe Gates, 21, stuns in nude slip dress at Feud: Capote Vs The Swans premiere... after dad was at World Economic Forum in Davos
