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The 'Who You Are' singer says her mum "rocks" while 'Firework' star Katy has also paid tribute for Mother's Day.
Jessie J and Katy Perry are among a number of stars to post tribute messages for their mums across Twitter today in celebration of Mothers Day.
The 'Domino' star, who has spent the past few weeks in Australia and Asia on tour, posted about her mum first thing today (18th March).
"Mamma knows best. All I have to say. My Mummy rocks. <3," Jessie tweeted this morning.
Katy Perry also posted a special message to celebrate Mother's Day, and the 'Teenage Dream' singer admitted she sometimes feels like a mum to all of her fans as well.
"Happy Mum's day to all the lovely mum's out there #UK #imamumtomykittenstoo," Katy wrote.
Jessie J is currently touring Malaysia but is due back in the UK next week ready for the launch of new reality series The Voice UK on Saturday 24th March.