It`s granny time for Rihanna

New York: Singer Rihanna tweeted her grandmother`s birthday party pictures online and gave fans a glimpse of her home life.

She cooked a birthday meal for her grandmother Dolly Brathwaite at her grandparents` home in Brooklyn, New York and presented her with a special cake, reports

The pop star also shared her amusement when her grandfather commented on her ever-changing hair colour.

"My Grandad: `Robyn (Rihanna) how ya is get (sic) hair from red to cream to black??? Cuz ya (sic) don`t carry wigs!!! Ya does (sic) wash it out?!` Me: ROTFL (rolling on the floor laughing)... (no words)," she tweeted.