MUMBAI: Singer Beyonce Knowles mother Tina Knowles says her seven months old grandson Sir has a ‘mean mug’ like his father Jay-Z.

Asked if she is seeing any of herself in Beyonce's children Sir and Rumi, Tina told usmagazine.com: "Other than the boy has a stare, like a mean mug, like Jay sometimes, which is so cute, and the girl, she is just so happy all the time and so sweet. They are just adorable!"

Tina says it feels ‘amazing’ to look after the twin children.

"It's one of the best blessings. Being a grandmother, it's not like being a mom because you don't have to have all the responsibility all the time, but they are amazing," Tina said.

"This is my first experience around twins, and they are so different, and their personalities. They are wonderful," she added.

(Source: IANS)