Victoria Beckham's kids thought their mom was ''so cool'' in the 90s.

The Spice Girls star and fashion designer - who has Brooklyn, 21, Romeo, 18, Cruz, 15, and Harper, nine, with her husband David Beckham - has revealed her children have been sending pictures of her from the 1990s and telling her she ''was so cool'' back then.

She told The Sunday Times' Style magazine: ''It's funny, my kids have been sending me pictures of myself from the 90s. Saying, 'Mum, you were so cool!' Thought I was cool ... Not so sure what they think now.''

Victoria previously revealed she feels ''really proud'' of her sons.

The 46-year-old fashion designer said: ''I feel really proud of our boys because they are turning out to be really good men. They work hard and they're kind, and being kind is key now. I think everybody should be kind - there are so many horrible things going on in the world. With regards to the boys they always have to have respect for themselves, for others, for girls. Our boys have always had the utmost respect for everyone. They have always been like that.''

And for Victoria, motherhood is her greatest achievement.

Speaking in a YouTube video, she added: ''Being a mum is the most important job in the world. I love what I do professionally and I take it very seriously but there is nothing more serious than having children. It's your responsibility to bring up really good, good people so I take that responsibility seriously. I try to be the best mum, I try to be the best wife, and I try and be the best professional.''