The Royals surprised a BBC Radio 1 host who is running in support of their mental health campaign, Heads Together.
Her comments come only days after Prince Harry opened up about the effect of losing his mother, Diana, Princess of Wales.
1 NEWS Europe Correspondent Emma Keeling had a look into the vault of over 80 million images.
Williams was fined 1500 euro for damaging French rugby's image due to his cocaine bust.
The British PM wasted no time attacking her rivals soon after calling a snap election.