Beyoncé, Mariah Carey, Britney Spears & Mel B celebrate Halloween with their kids...

Halloween is for the kids and a lot of celebs and their children dressed up to mark the occasion.

Beyoncé, her daughter Blue Ivy and husband Jay Z attended the Halloween parade in New york last night. Bey was Frida Kahlo, Jay was Jean Basquiat and Blue was the Picasso Baby. Their earlier Halloween outfits had Bey and Blue dressed as Janet and Michael Jackson (new pics added).

Mariah Carey's son Moroccan sported a Spiderman outfit and her daughter Monroe dressed as Elsa from Frozen. Mel B (who came out with her husband and three daughters) revisited her Spice Girls glory days by rocking a leopard print catsuit and platform trainers at the Jonathan Ross Halloween extravaganza in North London. Britney Spears posed it up with her mom and two sons who were both dressed as ninjas. Britney looked like she was revisiting her 'Baby One More Time' era. Those were the days...

Bey and family:

Mariah and her twins:

Britney and her sons:

Mel B and family: