Britney Spears' sons have been learning how to sing and dance by watching her.
The 'Perfume' singer is preparing for the start of her two-year residency in Las Vegas on December 27 and says sons Sean Preston, eight, and Jayden James, seven, have picked up plenty from her rehearsals.
Britney told E! news: "Preston, he's already dancing up a storm. He shows all my dancers how he can dance. It's really funny. [Jayden] is actually the singer. He sings a lot."
The star has been in intensive training for the shows and subjected to a gruelling rehearsal schedule, but is pleased with how things are looking ahead of the grand unveiling.
Britney said one of the things that has helped give her a lift while preparing has been when she spots one of her sons in the crowd.
She said: "I love when they're there. Last night, Preston was there and he lit me up when I saw him in the audience."
She added: "I've been through the wringer. But it's coming together and it's going to be worth it. I really feel that this is my best show I've ever done.
"I think the show takes you on this fun rollercoaster of uplifting things and then moody stuff that grabs you and takes you in."
She is also said to be "very happy" with her body ahead of the start of her Las Vegas concert residency.
Award-winning trainer Tony Martinez has revealed the 'Work Bitch' hitmaker is really pleased with her level of fitness after working hard to get in shape for her two-year concert residency.
Britney has been working as hard as she can in the gym to ensure she can perform her 90-minute shows at the Planet Hollywood Resort & Casino, which kick-off on Dec 27.
Tony told RadarOnline.com: "She is working as hard as she can, and it is paying off. She's using all her energy right now to get ready for her 90 minute Las Vegas show.
"She wants to be in the best shape possible, and she is very happy with her body right now. She is in a really good place, and I'm so proud of her."
Tony has shown mother-of-two Britney how to use her time effectively through 40-minute workouts four-days-a-week to make sure she's ready for the demanding dance routines for 'Britney: Piece of Me'.
He added: "My workout motto is work out smarter, not longer.
"There's no need to run on the treadmill for two hours. I've shown her ways to sculpt her body that take less than 20 minutes. Now she's loving these quick workouts."